World

Environment maps

Distribution of the Big Cats mapped

The term “big cat” is are commonly used to relate to any of the five species of the genus Panthera: lion, tiger, jaguar, leopard, and snow leopard. Except for the snow leopard, these big cat species can roar. A more broad interpretation of the term covers species outside of Panthera including the cougar, clouded leopard, Sunda clouded leopard, cheetah and even the several lynxes species. However, these added species also do not roar.

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Animals

Goats density map

Goat is domesticated from the wild goat of Southwest Asia and Eastern Europe. According to archaeological data, the earliest domestication happened in Iran 10 thousand years ago. Nowadays, there are about 1,100 different breeds in the world, and about 1 billion goats live on Earth.

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Languages

Language difficulty rankings

The time it takes to learn a language depends on many factors: How close the new language is to your native language or other languages you know; How complex the language is; How many hours each week you devote to learning the language; The language learning resources available to you; Your motivation.

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