Is your hamster happy? A new tool to assess moods in the furry little rodents can tell if they are optimistic or depressed.
T. rex and other big dinosaurs had teeth that were specialized for tearing through flesh and bone -- only one living animal has similar tooth structure. Can you guess which?
Artificial light at outdoor stadiums is a form of pollution that can harm certain animals.
Some like it hot, but woolly mammoths and giant sloths didn’t, helping to explain why these animals and other big beasts from the last Ice Age went extinct.
Entomologists solve the mystery of strange markings that appeared at night in Indian homes.
A great white shark on a Massachusetts beach was rescued, showing a successful technique to revive a suffocating shark. Continue reading →
Our species may be handy, but human hands turn out to be more primitive than chimps' and orangutans', according to a new study. Continue reading →
The world’s oldest known fossilized sperm has just been discovered in a 50-million-year-old worm cocoon from Antarctica. Continue reading →
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