Selamat pagi! Astronaut Ricky Arnold captured from ISS Java, Bali and Lombok Island, Indonesia. Between Bali and Lombok lies Wallace Line.

Credit: Ricky Arnold, NASA

There are lines with which eco-species become different. One of these lines is called Wallace Line, a faunal boundary line drawn in 1859 by the British naturalist Alfred Russel Wallace, that separates the ecozones of Asia and Wallacea, a transitional zone between Asia and Australia. The line runs through Indonesia, between Borneo and Sulawesi (Celebes), and through the Lombok Strait between Bali and Lombok. During ice age glacial advances, when the ocean levels were up to 120m lower, both Asia and Australia were united with what are now islands, and this affected the distribution of animals.

Wallace Line is as follows.

Credit: Wikipedia

The local scenery of Lombok Strait is as follows.

Credit: IndoSurfLife

Reference: Ricky Arnold’s Tweet
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