Animals that spend their life alone
Native to the Indian subcontinent, South China, and Southeast Asia, the majestic sambar deer is mainly nocturnal, though if you're lucky you might see one at twilight.
Armed with a reputation for ferocity and strength, the solitary wolverine patrols some of the remotest regions of the Northern Hemisphere.
They are found nowhere else on the planet. Needless to say, they are solitary beasts, coming together only to breed.
It's fortuitous for us that this serpent does indeed prefer a remote, inland habitat, because this is one of the most venomous snakes in the world.
The tiger ranks among the most recognized and popular of the world's big cats.
An endangered species, the cute red panda keeps to itself, adopting a solitary lifestyle and being mainly active from dusk till dawn.
It forages for hours alone in water, and can sleep as long as 14 hours per day.
The Arctic fox can tolerate temperatures as low as -50°C (58°F).
Black rhinoceros are generally thought to be solitary, with the only strong bond being between a mother and her calf.
Ranging widely in the Southern Ocean and the North Pacific, albatross are successful long-distance travelers and regularly circle the globe in effortless flight.