You won’t see a cockatoo if you go to Bali, but you will if you go to Lombok, which is next door. The circumstance is comparative with marsupials: Australia is home to various marsupial species, like the kangaroo and the koala. The further west you go, the sparser they become. While you will find only two agents of these commonly Australian warm blooded animals on the Indonesian island of Sulawesi, you will look to no end for them on adjoining Borneo. On the other hand, mammals like bears, tigers, and rhinos that are typically found in Asia are not found in Australia.
This sudden change in the sythesis of the creature world previously gotten the attention of the English naturalist and co-pioneer of transformative hypothesis Alfred Russell Wallace, who went through the Indo-Australian Archipelago from 1854 to 1862 to gather creatures and plants. He talked about a biogeographical line that was invisible and connected Bali to Lombok, Borneo to Sulawesi, and the westernmost distribution of Australian fauna.
Wildlife undergoes fascinating change Biodiversity researchers have long been captivated by the animals’ sudden shift along the Wallace Line. How these dispersion designs happened, in any case, has not yet been explained exhaustively.
Plate tectonics is one explanation. The Australian Plate began to move north 45 million years ago and fell under the enormous Eurasian Plate. This brought two expanses of land nearer together that had recently been far separated. It became simpler for land animals to colonize one mainland from the other. Structural developments additionally led to the formation of innumerable (volcanic) islands between the two mainlands, which creatures and plants utilized as venturing stones to relocate westwards or eastwards.
More Asian creatures in Australia than the other way around
Be that as it may, why more species tracked down their direction from Asia to Australia – – innumerable noxious snakes, prickly reptiles (Moloch horridus), jumping mice (Notomys sp.) or then again flying foxes give testimony regarding this – – than the alternate way round has been a secret as of recently.