WTD created an anthropoid 3D animation comparing the size of different primates and their extinct ancestors.
SciShow discussed how research shows crows and ravens are learning to use tools and apply intelligent problem-solving techniques.
A fun stop motion animation featuring a character named Bones making popcorn at a tiny factory with helpful animals working the line.
Brazilian actor Igor Venâncio came across a baby marmoset on the sidewalk and reunited the tiny primate with their mother.
Baby golden lion tamarin twins, at the Aukland Zoo, are thriving due to the care they received from staff after their mother rejected them.
Guitarist André Antunes quite amusingly added a heavy metal soundtrack to the powerful roar of an earnest red howler monkey.
A clip from "Amazing Animal Friends" shows the wonderfully symbiotic relationship between rescued vervet monkeys and their cats.
PBS Eons host Kallie Moore explains how sour taste, which may be the oldest taste of them all, evolved from dangerous to beneficial.