Killer whales (also called orcas) are apex predators, meaning they are at the top of their food chain. They feed on fish and squid like other odontocetes (toothed whales) do, but will also target ...

Late Eocene to Recent; very widespread in tropical to temperate regions. One of the commonest fossil echinoids in the Tertiary. Many nominal species have been described, but only two others have the ...

Natural History Museum scientists have described and named 190 new species to science in 2024 The list includes a snake named ...

A jar of krill specimens with visible eye spots. Blue whales eat huge volumes of these small crustaceans. Blue whales eat krill - tiny, shrimp-like crustaceans that live throughout Earth's oceans. The ...

Can you find Dippy's nostrils? What feature does Diplodocus share with humans but few other dinosaurs? Rotate, zoom in and explore the features of this popular dinosaur.

Distinguished from Holectypoida by the lack of buccal notches and the presence of petals. The other major group of irregular echinoids, the Atelostomata, primitively have an elongate apical disc. Only ...

Find the current valid taxon for genus- and species-group names.

Cidaris cyathifera Agassiz, in Agassiz & Desor, 1847, p. 329, by original designation [species originally based on spines, but Lambert (1911) figured a test with associated spines]. Distinguished from ...

This is one of the best known of all Cretaceous echinoids and has formed the basis for classic microevolutionary studies. Stokes (1975), Ernst (1970, 1972), Maczynska (1968) and Fouray (1981) deal in ...

Gentle giant or fierce meat-eater: which dinosaur shared your habits? Answer these questions to find out.

The Quadrantid meteor shower is active from late December 2024 to early January 2025. It will peak on 3–4 January. Read on for tips on how to catch the best view of this stunning shower from planetary ...

Welcome to the wonderful world of chalcidoid wasps! Described as "gem-like inhabitants of the woodlands by most never seen nor dreamt of", chalcidoids include some of the most beautiful insects on the ...