Australia: A newborn kangaroo attached to its mother's teat. When a kangaroo is born it is tiny (around the size of a jellybean) and hairless. It then climbs into its mother's pouch and attaches to her teat, where it will stay drinking milk for several months. This image is from Moody Beasts.
Indo-Pacific: Close up of a seahorse underwater. Seahorses are unique in that after an elaborate courtship display the female will transfer her eggs to the male, which he self fertilises in his pouch. It is the only reversed pregnancy in the animal kingdom. This image is from Moody Beasts.
Africa: Coral Reef, fish swimming and turtle resting in the corner. During the time a female turtle breeds, she will travel hundreds of miles to nest and head back again to her home foraging area. The sex of a turtle is determined by how warm or cool the eggs are kept during development. This image is from Moody Beasts.
Tusks are elongated incisor teeth that continue to grow. Although tusks are present at birth, the "baby tusks" fall out after a year, and permanent ones replace them. This image is from Mind of a Giant.
Zambia, Africa: Hyena looking straight ahead. In hyena societies, the females are the stronger, larger, more dominant sex. They also have a 7" clitoris that is as long as a male hyena's penis in which they give birth through. This image is from Moody Beasts.
Australia: Male red kangaroos (Macropus rufus) fighting. Male reproductive success can be linked to fighting ability. Fighting helps establish dominancy in the mob and thus gain access to the females (and pass on their genes). This image is from Moody Beasts.
America: Butterfly emerging from its cocoon. Monarch butterflies (Danaus plexippus) migrate to warmer climates and due to their short life cycle, they rely on a hormone to suspend its life in a state of youth â until it arrives at its destination. This image is from Moody Beasts.
Australia: A close shot of a rattle snake (crotalus) and jointed rattles on the tail. During a stressful situation, the snake's corticosterone levels (stress hormone) elevate resulting in a reductions in testosterone. This can lead to a reduction in aggressive behaviour. The rattle snake will rattle his tail when threatened and scare away any possible danger. This image is from Moody Beasts.