A new primate habitat was unveiled at Brookfield Zoo Thursday, which will include four outdoor habitats for western lowland ...

Colobus monkeys are native to the forests of Africa, where they form large groups called troops and scavenge for fruits, ...

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The Caldwell Zoo announced Tuesday they have three brand new additions to their animal family. Visit this article to learn more: <a href=" KETK/FOX51 News covers East Texas, bringing you the latest ...

Human testicles are much smaller, in proportion, to some of our primate cousins. Evolution can tell us why. But the size of ...

The human body is a machine whose many parts—from the microscopic details of our cells to our limbs, eyes, liver and brain—have been assembled in fits and starts over the 4 billion years of our ...

Colobus testicles weigh just 3 grams. The testicles of the macaques, in contrast, are a whopping 48 grams. You could come up with several believable explanations for their different testicle sizes.

The colobus with his harem can get away with producing a bare minimum of sperm – if a droplet is enough to produce a baby, then why make more?