Archives par mot-clé : Penguins

New islands, happy feet: Study reveals island formation a key driver of penguin speciation

by Molecular Biology and Evolution (Oxford University Press), February 5, 201 in ScienceDaily


Ever since Darwin first set foot on the Galapagos, evolutionary biologists have long known that the geographic isolation of archipelogos has helped spur the formation of new species.

Now, an international research team led by Theresa Cole at the University of Otago, New Zealand, has found the same holds true for penguins. They have found the first compelling evidence that modern penguin diversity is driven by islands, despite spending the majority of their lives at sea.

“We propose that this diversification pulse was tied to the emergence of islands, which created new opportunities for isolation and speciation,” said Cole.

Over the last 5 million years, during the Miocene period, (particularly within the last 2 million years), island emergence in the Southern Hemisphere has driven several branches on the penguin evolutionary tree, and also drove the more recent influence of human-caused extinctions of two recently extinct penguin species from New Zealand’s Chatham Islands.

BBC Confirms: Fake African Penguin Climate Claim ‘Was Misleading’

by Dr. Penny Peiser, December 17, 2018 in ClimateChangeDispatch


You may recall the BBC’s news story a couple of months ago, claiming that African penguin populations were declining because of climate change.

The report from South Africa, which then followed, made no mention of climate change at all but instead laid the blame fairly and squarely on overfishing.

This is not an isolated instance of false claims being made about climate change by the BBC. They now seem to be making a habit of it. — Paul Homewood, Not A Lot Of People Know That, 15 December 2018