Leaf-cutting ant

Leaf-cutting ant, Costa Rica

Also known as mushroom ants, the leaf-cutting ants live in tropical regions. These ants mainly feed themselves with a special mushroom they plant inside their anthill. This mushroom grows on substrate composed of leaves collected then chewed by leaf-cutting ants.
The photographed ant brings some pieces of leaves to the anthill. The ant is capable of lifting hundred times its own weight, so the illegal passengers who climbed up the leaf should not be a problem for the ant.

Tawny nurse shark (Nebrius ferrugineus), Maldives

Tawny nurse shark (Nebrius ferrugineus), Maldives

Nocturnal in habits, the tawny nurse shark tends to spend the day resting in piles of two dozen or more individuals inside caves or under ledges. At night, it is an active-swimming predator that uses a powerful suction force to extract prey from inside holes and crevices. The diet of this species consists mainly of octopus, crustaceans such crabs, small fishes.