Synonyms that are in the dictionary are marked in green. Synonyms that are not in the dictionary are marked in red.
Antonyms that are in the dictionary are marked in green. Antonyms that are not in the dictionary are marked in red.
Just two other vertebrate groups have achieved powered flight - the flying reptiles called pterosaurs and birds, both appearing way before bats.
The Apennine fossils force scientists to reconsider which factors might have triggered the vertebrate colonization of the deep sea.
Source: https://phys.org/news/2023-09-earliest-deep-sea-vertebrates-revealed-unusual.html
The newly discovered fossils may represent the first major step in the origins of modern deep-sea vertebrate biodiversity.
Source: https://phys.org/news/2023-09-earliest-deep-sea-vertebrates-revealed-unusual.html
There are at least 2,285 vertebrate species in the nation, including around 900 bird species, 625 exclusively freshwater fish species, 250 mammals, 250 amphibians, and 210 reptiles.