What is a Sessile Animal?

A sessile animal is fixed in one place. Corals are a prime example. They "take root" on the ocean floor.

What Exacty is Ivory?

Ivory is a hard material made from animals' tusks and teeth. The ivory obtained from all species is chemically the same, it's a compound of calcium called dentine. Apart from elephants, the main source of ivory, it can also be obtained from walrus, hippopotamus and narwhal. 

Land of Bhutan and its Biodiversity

Evidence shows that Bhutan was inhabited as early as 2000 BC. Buddhism was introduced to Bhutan in the 7th Century AD. Animals include the golden langur, also found in Western Assam in India. The takin is the national animal, which, according to mitochondrial research, is closely related to the sheep.