Graduate News

Roe Deer courtesy of Nathan Ranc

Memory Drives the Foraging Behavior of Large Wild Mammals

April 13, 2021

A recent study published in Proceedings of the National Academy of Sciences shows that the foraging decisions of roe deer are guided primarily by memory, and not sensory perception alone.

The cognitive processes underlying the foraging decisions of large mammals in nature are not well understood, in part because it has been difficult to disentangle the effects of sensory perception and memory on the animals’ movements. Nathan Ranc (Ph'D '...

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Fern Leaf by Jacob Suissa

Ferns in the mountains

February 16, 2021

Earth is home to millions of known species of plants and animals, but by no means are they distributed evenly. For instance, rainforests cover less than 2 percent of Earth's total surface, yet they are home to 50 percent of Earth's species. Oceans account for 71 percent of Earth's total surface but contain only 15 percent of Earth's species. What drives this uneven distribution of species on Earth is a major question for scientists.

In a paper published February 16 in the Journal of...

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Can a fin become a limb?

Can a fin become a limb?

February 4, 2021

Fin-to-limb transition is an icon of key evolutionary transformations. Many studies focus on understanding the evolution of the simple fin into a complicated limb skeleton by examining the fossil record. In a paper published February 4 in Cell, researchers at Harvard and Boston Children's Hospital examined what's occurring at the genetic level to drive different patterns in the fin skeleton versus the limb skeleton.

Researchers, led by M. Brent Hawkins, a recent doctoral...

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