What did birds evolve from? Are raptor birds related to dinosaurs? How did dinosaurs behave? What similarities exist between monotremes, reptiles, and birds? How did dinosaurs fly? How were Neanderthals and Cro-Magnons alike? Did theropods lay eggs?
Biology textbooks describe the small changes in the beaks of the Galápagos finches as exemplars of how birds evolve in response to environmental changes.However,recent studies of the abundant fossil birds at Rancho La Brea find no evidence of evolutionary responses to the dramatic climate changes ...
Only with the appearance of true humans – the genusHomo– did hominins begin to look and behave a little more like we do. Few now doubt that our genus evolved from a species of australopith, although exactly which one is a matter of debate. It was probably Lucy’s speciesAustralopithecus...
The evolution of flight in dinosaurs is one of the most fascinating and complex transitions in the history of life on Earth. This process involved significant anatomical and behavioral changes over millions of years, leading to the rise of the first birds from theropod dinosaur ancestors. The Grou...
Walking independently evolved several times in fish, making it an example of evolutionary convergence (similar traits that evolve independently,like wings in bats and birds). The evolution of walking in fish is rare though. There are more than 30,000 species of fish as we know them today (not...
But over the last three decades dinosaur fossils have been discovered with many different types of feathers, leading scientists to believe they are instead the ancestors of birds. Many of these feathered dinosaurs could not fly, prompting a new mystery: If not to take flight, why did they evo...
Where did dinosaurs live? What is the oldest dinosaur found that had feathers? Which dinosaurs evolved into birds? How did dinosaurs evolve? Are all the theropod dinosaurs extinct? What period of the Mesozoic Era did mammals first appear? What happened to the dinosaurs in the Triassic extinction...
Echolocation allows bats to fly at night as well as in dark caves. This is a skill they probably developed so they could locate night-flying insects that birds can’t find. It would be impossible for bats to fly around at night without echolocation. © James Hager/Robert Harding/Getty ...
How Dinosaurs Work How Bats Work More Great Links New York Times Slideshow: Animal Migration in Southern Sudan New York Times: In Sudan, an Animal Migration to Rival Serengeti USGS: Migration of Birds Sources Share: Citation More Awesome Stuff Up Next How Evolution Works Explore More Wild...
All non-avian dinosaurs became extinct. But avian dinosaurs survived because it was birds that descended from theropod dinosaurs. Eventually, mammals emerged as dominant large land animals. The cause of this extinction event was an asteroid impact which left an impact called theChicxulub Crater. Als...