Published 2 years ago

Scientists reveal origin of mammal evolution milestone: warm-bloodedness

Summary by Ground News

Paleontologists find evidence of endothermy in fossilized inner ears of ancient mammals. Endothermy is the ability to generate heat from within and keep a near-constant core body temperature. Researchers analyzed fossils from a group of 56 extinct species from which mammals emerged. They noticed these ancient animals had smaller canals and narrower ducts than similarly sized, cold-blooded creatures.

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Reuters

Scientists reveal origin of mammal evolution milestone: warm-bloodedness

By Will Dunham WASHINGTON - Scientists have answered a longstanding question about mammalian evolution, examining ear anatomy of living and extinct mammals and their close relatives to determine when warm-bloodedness - a trait integral to the lineage's success - first emerged. Researchers said on Wednesday that the reduced size of inner ear structures called semicircular canals

2 years ago·United Kingdom

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Sydney Morning Herald

Scientists uncover the origin of mammal milestone: warm-bloodedness

Scientists have answered a longstanding question about mammalian evolution to determine when the integral trait of warm-bloodedness first emerged.

2 years ago·Sydney, Australia

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Channel News Asia

Scientists reveal origin of mammal evolution milestone: Warm-bloodedness

WASHINGTON: Scientists have answered a longstanding question about mammalian evolution, examining ear anatomy of living and extinct mammals and their close relatives to determine when warm-bloodedness - a trait integral to the lineage's success - first emerged. Researchers said on Wednesday that the reduce

2 years ago·Singapore

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IBTimes

Scientists Reveal Origin Of Mammal Evolution Milestone: Warm-bloodedness

Scientists have answered a longstanding question about mammalian evolution, examining ear anatomy of living and extinct mammals and their close relatives to determine when warm-bloodedness - a trait integral to the lineage's success - first emerged. Researchers said on Wednesday that the reduced size of inner ear structures called semicircular canals - small, fluid-filled tubes that help in keeping balance - in fossils of mammal forerunners show…

2 years ago·United States

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Raw Story

Mammals became warm-blooded later than thought: study

The ancestors of mammals started to become warm-blooded around 20 million years later than previously thought, researchers suggested Wednesday, after analyzing inner-ear fossils hoping to solve "one of the great unsolved mysteries of paleontology".Warm-bloodedness is one of the quintessential characteristics of mammals, along with fur, but exactly when they first evolved the feature has long been a subject of debate.Previous research has indicat…

2 years ago·United States

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Observador

Warm-blooded evolved in mammalian ancestors later than previously thought

A study co-led by Portuguese paleontologist Ricardo Araújo suggests that endothermy evolved in mammalian ancestors later than previously thought, about 233 million years ago.

2 years ago·Portugal

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