Developmental biologist proposes new theory of early animal evolution, challenges basic assumptions
A New York Medical College developmental biologist whose life's work has supported the theory of evolution has developed a concept that dramatically alters one of its basic assumptions—that survival is based on a change's ...
Harvard researchers develop new kind of soft robotic gripper
Study resets date of earliest animal life by 30 million years
University of Alberta researchers have uncovered physical proof that animals existed 585 million years ago, 30 million years earlier than all previous established records show.
Fossil cricket: Jurassic love song reconstructed
Some 165 million years ago, the world was host to a diversity of sounds. Primitive bushcrickets and croaking amphibians were among the first animals to produce loud sounds by stridulation (rubbing certain ...
Body temperatures of dinosaurs measured for the first time
(PhysOrg.com) -- Were dinosaurs slow and lumbering, or quick and agile? It depends largely on whether they were cold or warm blooded. When dinosaurs were first discovered in the mid-19th century, paleontologists ...
Signs point to sponges as earliest animal life
Now you see it, now you don't: Scientists unraveling the mystery of camouflage
Climate change could cause cold-blooded animals' thermal tolerance to shrink
Cold-blooded animals can tolerate body temperatures only a few degrees above their normal high temperatures before they overheat, which could be a problem as the planet itself warms, according to San Francisco ...
Evolutionary history is a predictor of diversity of parasites in a species
The evolutionary history, body size and geographic range of an animal species are predictors for the diversity of parasites—or disease—that species carries, according to University of Georgia researchers.
Shape-shifting animals reveal secrets of why energy use changes during growth
Scientists at the University of Liverpool and Queen Mary University, London, have shown that changes in body shape in 'skin-breathing' aquatic animals could explain why animals use energy more slowly as they ...
Bat species is first mammal found hibernating at constant warm temperatures
Many mammals—and some birds—escape the winter by hibernating for three to nine months. This period of dormancy permits species which would otherwise perish from the cold and scarce food to survive to ...
Cold-blooded animals grow bigger in the warm on land, but smaller in warm water
Scientists studying arthropods, the group of cold-blooded animals that includes crabs and insects, have found that individuals within species living on land tend to grow to a larger size in the warm and nearer ...
Climate change challenge for animals reliant on external sources of heat
Animals that regulate their body temperature through the external environment may be resilient to some climate change but not keep pace with rapid change, leading to potentially disastrous outcomes for biodiversity.
Secrets of how worms wriggle uncovered
An engineer at the University of Liverpool has found how worms move around, despite not having a brain to communicate with the body.