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A Cape ground squirrel sits upright on its hind legs, holding its forelimbs up to its face.
Animals Are Shape-Shifting in Response to a Warming World
Forced to respond to a climate that’s changing faster than it ever has, it remains unclear whether species’ adaptations can keep pace.
Animals Are Shape-Shifting in Response to a Warming World
Animals Are Shape-Shifting in Response to a Warming World

Forced to respond to a climate that’s changing faster than it ever has, it remains unclear whether species’ adaptations can keep pace.

Forced to respond to a climate that’s changing faster than it ever has, it remains unclear whether species’ adaptations can keep pace.

body size
Megalodon from prehistoric times scene 3D illustration
Classroom Science Leads to Revision of Megalodon’s Size
Connor Lynch | Sep 1, 2021 | 5 min read
A handful of high schoolers prompt scientists to develop a new approach for calculating the size of the ancient behemoth.
Herbivore Body Size Influences Grazing Behavior, Poop Quality
Catherine Offord | Nov 1, 2020 | 3 min read
Researchers disentangle complex connections among vegetation, herbivores, and dung in the South African savanna.
Infographic: Herbivore Dung Nutrients Vary Across the Savanna
Catherine Offord | Nov 1, 2020 | 1 min read
In South Africa, the composition of droppings varies by species’ body sizes, and which animals are found where depends on vegetation density.
Image of the Day: Shrinking Dinosaurs
Emily Makowski | Jan 3, 2020 | 1 min read
As dinosaurs got smaller, their metabolism increased, paving the way for bird evolution.
Climate Change Linked to Shrinking Bird Sizes: Study
Emily Makowski | Dec 5, 2019 | 2 min read
The animals have a smaller body mass, shorter legs, and longer wings than they did four decades ago.
Largest and Smallest Animals at Highest Risk of Extinction, Study Finds
Ashley P. Taylor | Sep 19, 2017 | 2 min read
Researchers recommend greater conservation efforts toward non-mammals and small creatures.
Fish Size, Vision Skills Explained
Kerry Grens | Nov 5, 2015 | 2 min read
Scientists describe molecular underpinnings of salmon size and of fishes’ ability to navigate murky environments in separate studies.
Marine Life Trending Larger
Bob Grant | Feb 23, 2015 | 1 min read
Ocean animals have been getting bigger over the millennia, according to an analysis of thousands of genera that have plied Earth’s seas since the Cambrian Period.
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