you

Interesting articles, stories, news. Views on happenings. Current activities, ideas and events. International and Australian affairs - scientific, cultural, political, economic, sociological, anthropological, archaeological and historical environment..



Australian and Mediterranean Great White Shark Evolution

Luck plays a large part in evolution. Climate suddenly changes and if by chance a species of animal carries suitable genes to flourish in the new environment that animal lives on. Other species die off because they cannot cope.

New findings about the great white shark highlights this. Australian great whites and the Mediterranean type have genes that point to common ancestry. It is believed that a few related female sharks split up. Some going north to the Mediterranean from the larger gene pool in the south, or they peeled off from the main group in the Atlantic some going north the others going south. Narrow channels in the Mediterranean stopped this group from rejoining the Australian gene pool.

This happened 450,000 years ago. Mutations since that time make the timeline clear. It is believed that swordfish and tuna the main food of the great white also split off from the their main groups. Great white sharks followed the food supply.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Evolution
Australian Blog                         
ALL BLOG ARTICLES· ──► (BLOG HOME PAGE)

Sulpur-Crested Cockatoo





Hairy Danger is Fading Away
Bees
Not so many tunnel creatures left.... 
Aussie Sweet Syrup is Better
Bees
The curing sweet substance is better from Oz.... 
Uni shows deceit
Bees
College does anything to get your cash. . . . 
More Buzz
Bees
The population of apis is falling across the globe. . . . 
Birdsville
Sulphur-crested Cockatoo
Oz was referred to as parrot place by early Europeans. . . . 


Latest Pill to Reduce Immunity Damage
NLRP3 response
Discovery will stop the human system from fighting itself. . . .


Tech and Medic Have Cash Reduction
Health and technology spending cuts
Coalition ruling party does not understand the private/public sectors. . . .