howler monkeys
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Staff photo index
Last update: 2017-07-27
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![Mantled howler (Alouatta palliata) [costa_rica_la_selva_1556]](http://mongabay-images.s3.amazonaws.com/cr/150/costa_rica_la_selva_1556.jpg) Mantled howler (Alouatta palliata) [costa_rica_la_selva_1556]
(Costa Rica)
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![Male howler monkey [panama_0112]](http://s3.amazonaws.com/mongabay/panama/150/panama_0112.jpg) Male howler monkey [panama_0112]
(Panama)
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![Mantled Howler (Alouatta palliata) or Golden-mantled Howling Monkey [costa-rica_1316]](http://mongabay-images.s3.amazonaws.com/cr/150/costa-rica_1316.jpg) Mantled Howler (Alouatta palliata) or Golden-mantled Howling Monkey [costa-rica_1316]
(Costa Rica)
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![Mantled howler (Alouatta palliata) [costa_rica_la_selva_1545]](http://mongabay-images.s3.amazonaws.com/cr/150/costa_rica_la_selva_1545.jpg) Mantled howler (Alouatta palliata) [costa_rica_la_selva_1545]
(Costa Rica)
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![Mantled howler (Alouatta palliata) [costa_rica_la_selva_1529]](http://mongabay-images.s3.amazonaws.com/cr/150/costa_rica_la_selva_1529.jpg) Mantled howler (Alouatta palliata) [costa_rica_la_selva_1529]
(Costa Rica)
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![Mantled howler (Alouatta palliata) [costa_rica_la_selva_1531]](http://mongabay-images.s3.amazonaws.com/cr/150/costa_rica_la_selva_1531.jpg) Mantled howler (Alouatta palliata) [costa_rica_la_selva_1531]
(Costa Rica)
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 Rescued howler monkey at a rehabilitation center
(Peru)
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 Baby howler monkey
(0)
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 Red howler monkey
(Peru)
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 Mother and infrant howler monkeys
(0)
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 Mother and infrant howler monkeys
(0)
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![Mantled howler (Alouatta palliata) [costa_rica_la_selva_1547]](http://mongabay-images.s3.amazonaws.com/cr/150/costa_rica_la_selva_1547.jpg) Mantled howler (Alouatta palliata) [costa_rica_la_selva_1547]
(Costa Rica)
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![Young Black Howler Monkey (Alouatta pigra) eating berries [belize_8668]](http://travel.mongabay.com/belize/150/belize_8668.JPG) Young Black Howler Monkey (Alouatta pigra) eating berries [belize_8668]
(Belize)
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![Mantled howler (Alouatta palliata) [costa_rica_la_selva_1542]](http://mongabay-images.s3.amazonaws.com/cr/150/costa_rica_la_selva_1542.jpg) Mantled howler (Alouatta palliata) [costa_rica_la_selva_1542]
(Costa Rica)
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![Black Howler Monkey (Alouatta pigra) [belize_8705a]](http://travel.mongabay.com/belize/150/belize_8705a.JPG) Black Howler Monkey (Alouatta pigra) [belize_8705a]
(Belize)
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![Black Howler Monkey (Alouatta pigra) [belize_8746]](http://travel.mongabay.com/belize/150/belize_8746.JPG) Black Howler Monkey (Alouatta pigra) [belize_8746]
(Belize)
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![Male howler monkey [panama_0114]](http://s3.amazonaws.com/mongabay/panama/150/panama_0114.jpg) Male howler monkey [panama_0114]
(Panama)
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![Red howler monkey [colombia_5269]](http://mongabay.s3.amazonaws.com/colombia/150/colombia_5269.jpg) Red howler monkey [colombia_5269]
(Colombia)
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![Red howler monkey [colombia_5481]](http://mongabay.s3.amazonaws.com/colombia/150/colombia_5481.jpg) Red howler monkey [colombia_5481]
(Colombia)
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![Red howler monkey [colombia_5422]](http://mongabay.s3.amazonaws.com/colombia/150/colombia_5422.jpg) Red howler monkey [colombia_5422]
(Colombia)
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![Red howler monkey [colombia_5353]](http://mongabay.s3.amazonaws.com/colombia/150/colombia_5353.jpg) Red howler monkey [colombia_5353]
(Colombia)
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![Mantled howler (Alouatta palliata) [costa_rica_la_selva_1555]](http://mongabay-images.s3.amazonaws.com/cr/150/costa_rica_la_selva_1555.jpg) Mantled howler (Alouatta palliata) [costa_rica_la_selva_1555]
(Costa Rica)
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 Red howler monkey
(Peru)
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![Male howler monkey [panama_0109]](http://s3.amazonaws.com/mongabay/panama/150/panama_0109.jpg) Male howler monkey [panama_0109]
(Panama)
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![Mantled howler (Alouatta palliata) [costa_rica_la_selva_1570]](http://mongabay-images.s3.amazonaws.com/cr/150/costa_rica_la_selva_1570.jpg) Mantled howler (Alouatta palliata) [costa_rica_la_selva_1570]
(Costa Rica)
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 Red howler monkey
(Peru)
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 Mother and infrant howler monkeys
(0)
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![Red howler monkey [colombia_5092]](http://mongabay.s3.amazonaws.com/colombia/150/colombia_5092.jpg) Red howler monkey [colombia_5092]
(Colombia)
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 Cuddling Howler Monkeys (Alouatta palliata)
(Costa Rica)
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 Mother and infrant howler monkeys
(0)
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 Mother and infrant howler monkeys
(0)
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![Howler monkey [panama_0311]](http://s3.amazonaws.com/mongabay/panama/150/panama_0311.jpg) Howler monkey [panama_0311]
(Panama)
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![Male howler monkey [panama_0104]](http://s3.amazonaws.com/mongabay/panama/150/panama_0104.jpg) Male howler monkey [panama_0104]
(Panama)
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![Mantled howler (Alouatta palliata) [costa_rica_la_selva_1543]](http://mongabay-images.s3.amazonaws.com/cr/150/costa_rica_la_selva_1543.jpg) Mantled howler (Alouatta palliata) [costa_rica_la_selva_1543]
(Costa Rica)
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![Howler monkey [panama_0310]](http://s3.amazonaws.com/mongabay/panama/150/panama_0310.jpg) Howler monkey [panama_0310]
(Panama)
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 Mother and infrant howler monkeys
(0)
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 Red howler monkey
(Peru)
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![Mantled Howler Monkey (Alouatta palliata) [costa_rica_osa_0363]](http://mongabay-images.s3.amazonaws.com/cr/150/costa_rica_osa_0363.jpg) Mantled Howler Monkey (Alouatta palliata) [costa_rica_osa_0363]
(Costa Rica)
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![Red howler monkey [colombia_5175]](http://mongabay.s3.amazonaws.com/colombia/150/colombia_5175.jpg) Red howler monkey [colombia_5175]
(Colombia)
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![Mantled howler (Alouatta palliata) [costa_rica_la_selva_1569]](http://mongabay-images.s3.amazonaws.com/cr/150/costa_rica_la_selva_1569.jpg) Mantled howler (Alouatta palliata) [costa_rica_la_selva_1569]
(Costa Rica)
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![Male howler monkey [panama_0096]](http://s3.amazonaws.com/mongabay/panama/150/panama_0096.jpg) Male howler monkey [panama_0096]
(Panama)
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 Howler monkey
(Panama)
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![Mantled howler (Alouatta palliata) [costa_rica_la_selva_1560]](http://mongabay-images.s3.amazonaws.com/cr/150/costa_rica_la_selva_1560.jpg) Mantled howler (Alouatta palliata) [costa_rica_la_selva_1560]
(Costa Rica)
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![Mantled howler (Alouatta palliata) [costa_rica_la_selva_1563]](http://mongabay-images.s3.amazonaws.com/cr/150/costa_rica_la_selva_1563.jpg) Mantled howler (Alouatta palliata) [costa_rica_la_selva_1563]
(Costa Rica)
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![Holwer monkeys swinging from a vine [panama_0332]](http://s3.amazonaws.com/mongabay/panama/150/panama_0332.jpg) Holwer monkeys swinging from a vine [panama_0332]
(Panama)
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![Mantled Howler Monkey (Alouatta palliata) [costa-rica_0151]](http://mongabay-images.s3.amazonaws.com/cr/150/costa-rica_0151.jpg) Mantled Howler Monkey (Alouatta palliata) [costa-rica_0151]
(Costa Rica)
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 Mother and infrant howler monkeys
(0)
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![Red howler monkey [colombia_5114]](http://mongabay.s3.amazonaws.com/colombia/150/colombia_5114.jpg) Red howler monkey [colombia_5114]
(Colombia)
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![Holwer monkeys swinging from a vine [panama_0339]](http://s3.amazonaws.com/mongabay/panama/150/panama_0339.jpg) Holwer monkeys swinging from a vine [panama_0339]
(Panama)
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 Mother and infrant howler monkeys
(0)
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![Mantled Howler Monkey [costa_rica_osa_0361]](http://mongabay-images.s3.amazonaws.com/cr/150/costa_rica_osa_0361.jpg) Mantled Howler Monkey [costa_rica_osa_0361]
(Costa Rica)
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 Mother and infrant howler monkeys
(0)
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![Black Howler Monkey (Alouatta pigra) [belize_8756]](http://travel.mongabay.com/belize/150/belize_8756.JPG) Black Howler Monkey (Alouatta pigra) [belize_8756]
(Belize)
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![Mantled howler (Alouatta palliata) [costa_rica_la_selva_1539]](http://mongabay-images.s3.amazonaws.com/cr/150/costa_rica_la_selva_1539.jpg) Mantled howler (Alouatta palliata) [costa_rica_la_selva_1539]
(Costa Rica)
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![Mantled howler (Alouatta palliata) [costa_rica_la_selva_1551]](http://mongabay-images.s3.amazonaws.com/cr/150/costa_rica_la_selva_1551.jpg) Mantled howler (Alouatta palliata) [costa_rica_la_selva_1551]
(Costa Rica)
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![Holwer monkeys swinging from a vine [panama_0328]](http://s3.amazonaws.com/mongabay/panama/150/panama_0328.jpg) Holwer monkeys swinging from a vine [panama_0328]
(Panama)
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 Howler monkey revealing its testicles
(Belize)
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 Howler monkey showing its balls
(Belize)
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 Howler monkey displaying its nuts (genitalia)
(Belize)
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 Howler monkey balls
(Belize)
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![Mantled howler (Alouatta palliata) [costa_rica_la_selva_1556]](http://mongabay-images.s3.amazonaws.com/780/costa-rica/costa_rica_la_selva_1556.jpg)
![Male howler monkey [panama_0112]](http://mongabay-images.s3.amazonaws.com/780/panama/panama_0112.jpg)
![Mantled Howler (Alouatta palliata) or Golden-mantled Howling Monkey [costa-rica_1316]](http://mongabay-images.s3.amazonaws.com/780/costa-rica/costa-rica_1316.jpg)
![Mantled howler (Alouatta palliata) [costa_rica_la_selva_1545]](http://mongabay-images.s3.amazonaws.com/780/costa-rica/costa_rica_la_selva_1545.jpg)
![Mantled howler (Alouatta palliata) [costa_rica_la_selva_1529]](http://mongabay-images.s3.amazonaws.com/780/costa-rica/costa_rica_la_selva_1529.jpg)
![Mantled howler (Alouatta palliata) [costa_rica_la_selva_1531]](http://mongabay-images.s3.amazonaws.com/780/costa-rica/costa_rica_la_selva_1531.jpg)
![Mantled howler (Alouatta palliata) [costa_rica_la_selva_1547]](http://mongabay-images.s3.amazonaws.com/780/costa-rica/costa_rica_la_selva_1547.jpg)
![Young Black Howler Monkey (Alouatta pigra) eating berries [belize_8668]](http://mongabay-images.s3.amazonaws.com/780/belize/belize_8668.jpg)
![Mantled howler (Alouatta palliata) [costa_rica_la_selva_1542]](http://mongabay-images.s3.amazonaws.com/780/costa-rica/costa_rica_la_selva_1542.jpg)
![Black Howler Monkey (Alouatta pigra) [belize_8705a]](http://mongabay-images.s3.amazonaws.com/780/belize/belize_8705a.jpg)
![Black Howler Monkey (Alouatta pigra) [belize_8746]](http://mongabay-images.s3.amazonaws.com/780/belize/belize_8746.jpg)
![Male howler monkey [panama_0114]](http://mongabay-images.s3.amazonaws.com/780/panama/panama_0114.jpg)
![Red howler monkey [colombia_5269]](http://mongabay-images.s3.amazonaws.com/780/colombia/colombia_5269.jpg)
![Red howler monkey [colombia_5481]](http://mongabay-images.s3.amazonaws.com/780/colombia/colombia_5481.jpg)
![Red howler monkey [colombia_5422]](http://mongabay-images.s3.amazonaws.com/780/colombia/colombia_5422.jpg)
![Red howler monkey [colombia_5353]](http://mongabay-images.s3.amazonaws.com/780/colombia/colombia_5353.jpg)
![Mantled howler (Alouatta palliata) [costa_rica_la_selva_1555]](http://mongabay-images.s3.amazonaws.com/780/costa-rica/costa_rica_la_selva_1555.jpg)
![Male howler monkey [panama_0109]](http://mongabay-images.s3.amazonaws.com/780/panama/panama_0109.jpg)
![Mantled howler (Alouatta palliata) [costa_rica_la_selva_1570]](http://mongabay-images.s3.amazonaws.com/780/costa-rica/costa_rica_la_selva_1570.jpg)
![Red howler monkey [colombia_5092]](http://mongabay-images.s3.amazonaws.com/780/colombia/colombia_5092.jpg)
![Howler monkey [panama_0311]](http://mongabay-images.s3.amazonaws.com/780/panama/panama_0311.jpg)
![Male howler monkey [panama_0104]](http://mongabay-images.s3.amazonaws.com/780/panama/panama_0104.jpg)
![Mantled howler (Alouatta palliata) [costa_rica_la_selva_1543]](http://mongabay-images.s3.amazonaws.com/780/costa-rica/costa_rica_la_selva_1543.jpg)
![Howler monkey [panama_0310]](http://mongabay-images.s3.amazonaws.com/780/panama/panama_0310.jpg)
![Mantled Howler Monkey (Alouatta palliata) [costa_rica_osa_0363]](http://mongabay-images.s3.amazonaws.com/780/costa-rica/costa_rica_osa_0363.jpg)
![Red howler monkey [colombia_5175]](http://mongabay-images.s3.amazonaws.com/780/colombia/colombia_5175.jpg)
![Mantled howler (Alouatta palliata) [costa_rica_la_selva_1569]](http://mongabay-images.s3.amazonaws.com/780/costa-rica/costa_rica_la_selva_1569.jpg)
![Male howler monkey [panama_0096]](http://mongabay-images.s3.amazonaws.com/780/panama/panama_0096.jpg)
![Mantled howler (Alouatta palliata) [costa_rica_la_selva_1560]](http://mongabay-images.s3.amazonaws.com/780/costa-rica/costa_rica_la_selva_1560.jpg)
![Mantled howler (Alouatta palliata) [costa_rica_la_selva_1563]](http://mongabay-images.s3.amazonaws.com/780/costa-rica/costa_rica_la_selva_1563.jpg)
![Holwer monkeys swinging from a vine [panama_0332]](http://mongabay-images.s3.amazonaws.com/780/panama/panama_0332.jpg)
![Mantled Howler Monkey (Alouatta palliata) [costa-rica_0151]](http://mongabay-images.s3.amazonaws.com/780/costa-rica/costa-rica_0151.jpg)
![Red howler monkey [colombia_5114]](http://mongabay-images.s3.amazonaws.com/780/colombia/colombia_5114.jpg)
![Holwer monkeys swinging from a vine [panama_0339]](http://mongabay-images.s3.amazonaws.com/780/panama/panama_0339.jpg)
![Mantled Howler Monkey [costa_rica_osa_0361]](http://mongabay-images.s3.amazonaws.com/780/costa-rica/costa_rica_osa_0361.jpg)
![Black Howler Monkey (Alouatta pigra) [belize_8756]](http://mongabay-images.s3.amazonaws.com/780/belize/belize_8756.jpg)
![Mantled howler (Alouatta palliata) [costa_rica_la_selva_1539]](http://mongabay-images.s3.amazonaws.com/780/costa-rica/costa_rica_la_selva_1539.jpg)
![Mantled howler (Alouatta palliata) [costa_rica_la_selva_1551]](http://mongabay-images.s3.amazonaws.com/780/costa-rica/costa_rica_la_selva_1551.jpg)
![Holwer monkeys swinging from a vine [panama_0328]](http://mongabay-images.s3.amazonaws.com/780/panama/panama_0328.jpg)
