The black howler is also known as the black-and-gold howler because they are sexually dimorphic. Males have a black pelage, whereas females have a golden or blonde pelage. Infants are born with golden fur and change as they mature. This is because golden fur helps to camouflage the infants in their mothers’ blonde coats.
Every morning, male members of a group emit howling signals to announce their location to neighboring groups. This allows them to keep their distance between groups to avoid unnecessary competition. They are known for emitting the loudest call of all primates in the world, thanks to their unique egg-shaped hyoid bone.
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Terrestrial / Aquatic
Altricial / Precocial
Polygamous / Monogamous
Dimorphic (size) / Monomorphic
Active: Diurnal / Nocturnal
Social behavior: Solitary / Pack / Herd / Group
Diet: Carnivore / Herbivore / Omnivore / Piscivorous / Insectivore
Migratory: Yes / No
Domesticated: Yes / No
Dangerous: Yes / No