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News
324-million-year-old insect fossil reveals early life on Earth roamed between water and land
5+ day, 7+ hour ago (956+ words) A 324-million-year-old fossil suggests early insects lived between water and land as their bodies gradually changed over time. Life on Earth changed greatly when animals began moving from water onto land. It happened in stages, and some early animals, including…...
New Ice Age toad species identified at the La Brea Tar Pits
1+ week, 5+ day ago (830+ words) Decades-old museum collections from La Brea have revealed a bone belonging to a new species of Ice Age amphibian, a type of spadefoot toad. The most sensitive climate instrument at La Brea Tar Pits is not a mammoth. It is…...
Ancient armored fish survived a massive impact before Earth’s largest mass extinction
2+ week, 2+ day ago (1023+ words) A remarkably complete armored fish fossil from Brazil survived near a massive asteroid crater, revealing an unexpected link to ancient Europe. Near the end of the Permian, an asteroid hit central Brazil and folded the rock layers around the crater…...
Famous names in human evolution may be due for retirement
3+ week, 2+ day ago (803+ words) A new study could reshape human evolution by placing Australopithecus and Paranthropus within an expanded genus Homo. Some of the best-known names in human evolution – including Australopithecus and Paranthropus – may be due for retirement. A new study argues that these…...
Mammal extinction followed the same rules for 130,000 years – until now
3+ week, 2+ day ago (797+ words) Traits that predicted mammal extinction for 130,000 years are changing, raising questions about how scientists identify species most at risk today. For 130,000 years, certain traits reliably predicted which mammals would go extinct and which would survive. A new study suggests that…...
Ancient penguin bones hold climate secrets hidden for millions of years
4+ week, 1+ day ago (790+ words) Ancient penguin bones preserve chemical clues that reveal how Antarctica’s environment and climate changed millions of years ago. Fossilized penguin bones from Antarctica aren’t just remnants of an extinct lineage. According to a new study, they’re chemical archives, preserving clues…...
Giant animals may explain how humans spread across the Americas
3+ week, 4+ day ago (1011+ words) Early humans may have spread across the Americas by specializing in giant prey such as mammoths, ground sloths, and gomphotheres. Near the end of the last Ice Age, the ancestors of Indigenous peoples spread from Alaska and the Yukon to…...
Dodos weren’t stupid, and their skulls finally prove it
1+ week, 6+ day ago (1073+ words) Analysis of dodo bird skulls has helped scientists understand how they observed and interacted with the world before their extinction. Call someone a dodo and nobody asks what you mean. The bird showed little fear of the people who landed…...
Fossil bite marks show mammals didn’t always rule the food chain
5+ day, 9+ hour ago (1262+ words) Purussaurus bite marks on fossil bones show a 23-foot crocodile relative killed hoofed mammals weighing up to 4,000 pounds in ancient South America. Saltwater crocodiles in northern Australia hunt horses, cattle, and feral water buffalo. They are the largest crocodiles alive…...
Stone Age families relied on snakes and lizards for food
4+ day, 8+ hour ago (1182+ words) Snakes and lizards made up a surprising share of meals at a Natufian settlement, where the same butchering method persisted for millennia. The familiar picture of the Stone Age diet centers on big animals: a gazelle on a spit, a…...