Tag Archives: body size

New Tool for CSI? Geographic Software Maps Distinctive Features inside Bones

COLUMBUS, Ohio – A common type of geographic mapping software offers a new way to study human remains.

In a recent issue of the American Journal of Physical Anthropology, researchers describe how they used commercially available mapping software to identify features inside a human foot bone – a new way to study human skeletal variation. (more…)

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UCLA Life Scientists View Biodiversity Through a Whole New Dimension

Study of body size, feeding rates has implications for ecosystems, food supply

How can blue whales, the largest animals on the planet, survive by feeding on krill, shrimp-like creatures that are the size of a penny? According to UCLA life scientists, it’s all a matter of dimensions.

In findings published May 30 in the journal Nature, the researchers demonstrate for the first time that the relationship between animals’ body size and their feeding rate — the overall amount of food they consume per unit of time — is largely determined by the properties of the space in which they search for their food. (more…)

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Evolution of Earliest Horses Driven by Climate Change

*The hotter it gets, the smaller the animal?*

When Sifrhippus sandae, the earliest known horse, first appeared in the forests of North America more than 50 million years ago, it would not have been mistaken for a Clydesdale.

It weighed in at around 12 pounds–and it was destined to get much smaller over the ensuing millennia.

Sifrhippus lived during the Paleocene-Eocene Thermal Maximum (PETM), a 175,000-year interval of time some 56 million years ago in which average global temperatures rose by about 10 degrees Fahrenheit. (more…)

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