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T. Rex Had Vicious Teeth, the Better to Shred You With

This feature is only seen in the Komodo dragon today

(Newser) - The Komodo dragon is the only known creature on the planet today to boast teeth that are serrated, like a jagged-edged steak knife. But now researchers have discovered that the mighty T. rex not only sported serrated teeth, but also secret folds hidden toward the bottom of those teeth that... More »

Whale Fossil Provides Clues on Human Origins

Discovery sheds light on when uplift of African continent began

(Newser) - An ancient whale with a bad sense of direction is helping researchers figure out when the landscape of Africa changed in a way that drove the evolution of humans. The beaked whale in question apparently took a wrong turn into a river and swam into modern-day Kenya about 17 million... More »

Ancient Giant Kangaroos Too Heavy to Hop

Their lumbering gait may have been their undoing

(Newser) - It isn't just recently that humans have hunted animals to extinction. It appears that 100,000 years ago a giant kangaroo lived in the Australian Outback, where it walked instead of hopped. But perhaps due to its slowness, the creature was an easy target for hunters who arrived somewhere... More »

3 Stories