Newly found primates help to tell the story of primate evolution, shedding light on why our earliest ancestors migrated from Asia to Africa.
The stickleback fish did something in less than 10,000 years that would take other animals at least 100 times as long.
Sleep patterns like REM and SWS evolved in a common animal ancestor more than 300 million years ago.
Slime mold, a unicellular organism at the bottom of the food chain, can learn, a finding that has important implications for understanding the evolution of learning, as well as how many creatures can be 'smart' and successful without a brain.
Scientists have identified the gene that regulates beak size, which has allowed greater variation in food sources for the iconic Galapagos birds.
Ancient bears evolved to become giants so they could scavenge prey killed by others, a new study suggests.
A recently discovered baby dinosaur was about the size of a golden retriever upon hatching, yet its parents grew to be the largest animals ever to walk the Earth.
Life went from really bad to worse for dinosaurs in the years preceding the asteroid impact, new research shows.
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