A 300,000-year-old jawbone from China refuses to fit neatly into the human family tree — and a reconstructed million-year-old skull is now suggesting our major ancestral branches split hundreds of thousands of years earlier than we thought
All known life uses 4 DNA letters; UC San Diego showed an existing bacterial enzyme can accurately read and transcribe 8, doubling the genetic alphabet with synthetic letters
Scientists found an estimated 5.5 million wild bees living beneath a New York cemetery — millions of solitary insects packed into underground burrows across just 1.5 acres, creating one of the largest nesting aggregations ever recorded at a site where the species has quietly survived for generations
Scientists uncovered a bizarre crocodile cousin from 215 million years ago that started life walking on all fours, then changed its entire stance as it grew — by adulthood it was standing upright and striding around on two legs