A 15-million-year-old fossilized freshwater fish with preserved stomach contents is a newly discovered species
In an Australian first, researchers have described a new species of 15-million-year-old fossilized freshwater fish, ...
15 million-year-old creature — with its last meal inside — is new species in Australia
Brock’s iron shield fish adds to the rich prehistoric history of McGraths Flat, and contributes to its classification as a ...
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Fish evolve rapidly by switching between simple and complex teeth
Fish can change their teeth quickly, which speeds up their evolution. Cichlids in African lakes show the fastest ...