Earth’s history is filled with incredible milestones, and the emergence of the first animals is one of the most captivating.

Rosie is a freelance writer living in London. She has covered everything from ancient Egyptian temples to exciting medical breakthroughs, but she particularly enjoys writing about wildlife ...

Antarctica was first sighted by humans just 200 years ... Blue whales are not only the biggest mammal on Earth, but also the loudest. They emit pulses, groans and moans, which scientists think ...