Bacteria could learn to predict the future

Bacteria could learn to predict the future

Using computer simulations and a simple theoretical model, physicist Mikhail Tikhonov in Arts & Sciences showed how bacteria could adapt to a fluctuating environment by learning its statistical regularities — for example, which nutrients tend to be correlated — and do so faster than evolutionary trial-and-error would normally allow.
For larger, older trees, it’s all downhill from here

For larger, older trees, it’s all downhill from here

Jonathan Myers, associate professor of biology in Arts & Sciences, and William Farfan-Rios, a postdoctoral research fellow of the Living Earth Collaborative at Washington University, are co-authors of a study that found that trees’ fecundity — or physical potential to reproduce — peaked or plateaued as they reached an intermediate size.
Sticky toes unlock life in the trees

Sticky toes unlock life in the trees

Biologists at Washington University in St. Louis examined data from 2,600 lizard species worldwide and discovered that while hundreds of different types of lizards have independently evolved arboreal lifestyles, species that possessed sticky toepads prevailed.
’Til the cows come home

’Til the cows come home

New research led by archaeologists at Washington University in St. Louis shows that meat and dairy played a more significant role in human diets in Bronze Age China than previously thought. The analysis also suggests that farmers and herders tended to sheep and goats differently than they did their cows.
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