Animals

Butterflies include both diurnal species and moths, which make up 90% of all butterflies.

Lamprey's larvae (ammocoete) spend a few years in fresh bodies of water until they undergo metamorphosis.

They inhabit the polar zones in the Arctic Sea, the coasts of Greenland, and Spitsbergen. An isolate ...

They can most often be observed in the morning or late evening because too high temperatures drive them to shaded places or to burrows.

They were reptilian in appearance, however, some evidence suggests that there might have been separate genera, at least partially covered in hair-like structures.

Some crustaceans hatch in an adult-like form and grow with successive moulting (epimorphosis). Other ...

The mouth opening is located on the underside of the body between the legs. They move the food into the mouth with chelicerae—a pair of small appendages.

It is found in all populated parts of Europe, Asia, Africa, Australasia and the Americas, in the Arctic and in tropical equatorial forests, where it is widespread.