U-X

Despite not having an incredibly long tail to clutch onto branches with, the strong hind legs of the Uakari enable them to be able to jump staggering distances.

the droppings of the Uguisu (known as guano) are now used as a product in certain face creams particularly, as it is thought to make skin softer and more radiant looking.

The distinctive throat pouch of the Umbrellabird inflates on the males during the breeding season.

Have a heat sensor on the end of their nose

They are the rarest marine mammal and are at imminent risk of complete extinction.

Vultures alternate between moments of gorging themselves on as much food as they can eat and long periods of rest and sleep while they digest their meal.

• Wasps can repeatedly attack because their stinger is not barbed like those of bees.

The Weasel is a carnivorous animal that has sharp, pointed canine teeth which are used for biting and shearing flesh

The average wolf has a total of 42 teeth in its mouth. Their teeth can be up to 2.5 inches long.

Xanthippe's shrew is a species of mammal in the family Soricidae. It is found in Kenya and Tanzania. Its natural habitats are dry savanna and subtropical or tropical dry shrubland.

A Xerus uses its fluffy tail as shade from the sunlight in Africa.

The X-Ray Tetra is a small species of schooling fish that is naturally found in the Amazon River’s coastal waters in South America.