Topic
Classification
3 questions tagged Classification — spanning every one of the seven Ws.
what
What is a crocodilian?
A crocodilian is a member of the reptile order Crocodylia, which includes crocodiles, alligators, caimans and gharials.
ReptilesClassification
when
When did the first modern bird, the ostrich, get scientifically described?
The ostrich was scientifically described by Carl Linnaeus in 1758, in the 10th edition of Systema Naturae.
BirdsClassification
how
How do scientists tell the difference between a planet, a dwarf planet, and an asteroid?
They look at whether the object orbits the Sun, is nearly round, and has cleared most of its orbital neighborhood.
SpaceClassification