Question

Which of the following is NOT true of the Wallace Line?

	It separates most marsupial mammals from the more widespread placental mammals
	It marks the seaway that remained open between far South east Asia and the islands beyond even during the deepest glacial periods.
	It separates dumb spider monkeys from the incredibly intelligent howler monkeys.
	It separates modern populations with significant amounts of Denisovan DNA from modern populations without significant amounts of Denisovan DNA.
	It is in the area where Charles Wallace did his fieldwork.

Answer 1

Wallace line was a faunal boundary, made depending on the work of  Alfred Russel Wallace ( and not Charles Wallace) which separates marsupials and the rest of the mammals. It also is at the eastern border of the old Asian continent and which were marked by connecting shallow seas which existed during deep glacial periods. Denisovan DNA thought to belong to Denisova hominins, an ancestral species of humans are also found in a much higher percentage in Australian aboriginals, i.e. the human population which originally belonged to the Australian side of the Wallace line.

However, one statement that is not true is the separation of spider monkeys and howler monkeys, since they are both commonly found in regions of Central and South America, mostly around the rain forest regions.