How Did Birds Get Their Wings? Bacteria May Provide a Clue, Say ScientistsNew research has used bacteria to show that acquiring duplicate copies of genes can provide a 'template' allowing organisms to evolve novel traits from redundant copies of existing genes.University of Oxford...
Where did insect evolve from? It is estimated that the class of insects originated on Earth about 480 million years ago, in the Ordovician, at about the same time terrestrial plants appeared. Insects may have evolved froma group of crustaceans. ...
Did birds evolve from theropods? How are marsupials different from eutherians? How did dinosaurs evolve feathers? How are marsupials and monotremes similar? How diverse are marsupials? How are sharks different from bony fish? How are sauropods and theropods related?
Think of a modern bird. When you eat chicken wings, you won’t find claws, but dinosaurs had them. This is known as mosaic evolution, where different parts of the body evolve at different rates — like assembling a biological jigsaw puzzle. It highlights the complexity of early bird evoluti...
Wing-Assisted Incline Running (WAIR): Modern birds, such as young partridges, use their wings to help them run up steep inclines. This behavior supports the idea that feathered dinosaurs might have used their proto-wings in a similar way, gradually developing the ability to glide and eventually...
Animals produce sounds using various mechanisms, such as mammals with vocal cords, birds with the syrinx, and insects through body parts like wings or legs. For effective communication, animals have developed complex auditory systems that allow them to perceive and interpret sounds accurately. The co...
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...
How did birds evolve? If all animals evolved from some kind of fish millions of years ago and that fish eventually made it onto land through several mutations, I don't understand how birds could possibly evolve from this. Maybe this land creature's offspr How does the process of direc...
Many of these feathered dinosaurs could not fly, prompting a new mystery: If not to take flight, why did they evolve to have feathers in the first place? This movie illustrates three different ways in which dinosaurs with proto-wings might have flushed their prey by visual displays to subsequ...
A giant blue morpho butterfly flits by, its iridescent wings a shocking splash of electric blue against the lush green forest. “They come by, like, the same place at the same time of day,” Warkentin says. “I swear I see that one every morning,” Vonesh says. ...