species

The usual answer is that, by reshuffling genes with every generation, sex creates new genetic combinations, detaches beneficial mutations from harmful ones and gives a species a degree of evolutionary flexibility.

So, why would a species like the banded mongoose favor breeding between relatives?

In Greek mythology, the species became associated with numerous gods.

Mistletoes infections can kill individual trees and stands of trees, and most mistletoe species attack specific tree species.

Instead, most of the suffering species ate insects on the forest floor.

Mistletoes on mesquite trees in central Mexico have been linked to a greater abundance of tropical bird species.

Fourteen genera, representing about 19 species, of Mallophaga are reported for 20 different species of bird hosts.

This is a feature by means of which it is always possible to distinguish the Great Horsetail from any other species.

Most of my observations are in keeping with Skutch's detailed report of the species in Central America.

Where the outside conditions are not very favourable, practically all the British species may be grown with ease under glass.

Whatever the species, it is well to imitate the natural conditions as much as possible in the way of soil.