Larger species will also take lizards and even small mammals.

Tropical species take longer because of the poorer food supply.

But many species of penguin do take to the air.

However, this species probably takes more dragonflies than any other food item.

Any truly intelligent species would take one look at us and keep right on going.

Humans, and some other primate species, have taken a different path.

These resistant species spread and take the place of those harmed or killed by the stress.

One or two species will also take some fruit.

Every species takes advantage of other living things to ensure its survival.

Several species, since body weight is no longer such a problem, have once again taken to armour.