A fundamental question in dinosaur evolution is how they adapted to long-term climatic shifts during the Mesozoic Era (the dinosaur era lasting from 230...
Few fast-swimming apex fishes are classified as regional endotherms, or partially warm-blooded, having evolved a relatively uncommon suite of traits (e.g....
Otodus megalodon, a megatooth shark that lived between 23 and 3.6 million years ago, was not a fast swimmer, but it had a mega-appetite explaining its...
Otodus megalodon was a gigantic megatooth shark that lived in the world’s oceans from 23 to 3.6 million years ago. It could grow to the enormous size...
The dinosaur-bird transition is among the most fascinating events in evolutionary history, but several aspects such as changes in reproductive system,...
Among modern animals, only mammals and birds are warm-blooded, and the ability to keep ourselves warm has enabled mammals to survive in icy weather and...
Otodus megalodon, the largest shark that ever lived on Earth, most certainly reached at least 15 m (50 feet) in total length based on its gigantic teeth....
The whole-body endothermy seen in modern birds and mammals is long held to have evolved independently in each group, a reasonable assumption when it was...
The ancestors of both mammals and birds became warm-blooded at the same time, some 250 million years ago, in the time of the end-Permian mass extinction,...
A team of researchers led by Dr Nicholas Wegner of NOAA Fisheries’ Southwest Fisheries Science Center has discovered a whole-body form of endothermy...
