Researchers classify the coelacanth under the group Sarcopterygii, which include the earliest ancestors of amphibians, reptiles, and mammals.
“The discovery of the 15 million-year-old freshwater fish fossil offers us an unprecedented opportunity to understand ...
All steelhead start life as rainbow trout, but not all rainbow trout will become steelhead. Confused? You’re not alone.
In an Australian first, researchers have described a new species of 15-million-year-old fossilized freshwater fish, ...