Somalilandsun” An invisible line running across the Malay Archipelago from Bali to the Philippines serves as a natural border, which animals, birds and fish hardly ever cross.
The invisible line stretching across the Malay Archipelago serves as an unofficial border to wild and marine life, with fish and birds rarely, if ever passing over it.
Known as the Wallace line, the boundary runs from the island of Bali to the Philippines, dividing the region into east and west with distinctly different ecosystems.
The line is named after the 19th-century natural historian Alfred Russel Wallace whose studies across the Amazon rainforest and Indonesian archipelago made him an early pioneer in the study of animal placements.
Accordingly Wallace notes that The west of line sees animals commonly associated with Asia such as tigers, rhinos, elephants and hoofed animals.
While to the east, the wildlife becomes more Australasian with animals such as flightless birds, marsupials, dingoes and kangaroos.
The line, which scientists calls a “biological boundary”, is believed to have developed over millions of years as the earths tectonic plates moved and shifted, a deep-sea strait formed on the Wallace line.
A biological border is a concept that refers to the idea that terrestrial boundary lines are not biological borders, and that a small distance can make a big difference in the life or death of a small, airborne virus
Continue reading The invisible border that even birds and fish don’t cross
