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aries1988 : ecosystem   6

Exploring Lake Baikal | JSTOR Daily
The nature of the lake itself lends it to great diversity. For one thing the lake is at least 25 million years old. It is also extremely deep, and unlike many deep lakes, all depths contain plenty of dissolved oxygen. Under such conditions, organisms have the entire lake in which to speciate. Species can differentiate at opposite ends of the lake, or in the same location but at different depths. Several river systems drain into Baikal, so additional organisms have the opportunity to colonize the lake. Some of these species remain as they are, adding to the diversity, while others evolve in the lake into even more unique creatures.
lake  baikal  russia  mongolia  nature  climate  animal  ecosystem 
april 2019 by aries1988
Man v rat: could the long war soon be over? | Jordan Kisner | Science | The Guardian
Why? How is it that we can send robots to Mars, build the internet, keep alive infants born so early that their skin isn’t even fully made – and yet remain unable to keep rats from threatening our food supplies, biting our babies, and appearing in our toilet bowls?

Rats have the same taste preferences as humans – they love fat and sugar – though Dyer’s experiments with various flavour profiles indicated that their appetite for both exceeds ours.
biology  animal  ecosystem  city  human  trash  food  scientist 
september 2016 by aries1988

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