(PhysOrg.com) -- Long-standing problems are quite often solved simultaneously by various people working alone. Take, for example, naturalists Charles Darwin and Alfred Russel Wallace, who separately proposed the theory of ...
Economics & Business
Mar 17, 2011
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Mountaineers who venture high into the Colorado Rockies have likely spotted medium-sized, brown-and-pink birds rummaging around on snow patches for insects and seeds. These high-elevation specialists are rosy finches, a type ...
Plants & Animals
Jan 27, 2023
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166
During his notable trip to the Galápagos Islands, Charles Darwin collected several mockingbird specimens on different islands in the region. He later discovered that each island only contained a single species of mockingbird ...
Plants & Animals
Nov 4, 2016
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143
Charles Darwin wrote about it 150 years ago: animals don't pick their mates by pure chance - it's a process that is deliberate and involves numerous factors. After decades of examining his work, experts agree that he pretty ...
Evolution
Jun 16, 2009
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Pet owners and scientists who spend a lot of time in the wild say that they can tell when an animal is upset by the sound of its voice. Now new analyses of animal calls may offer an explanation; humans seem to express frustration ...
Plants & Animals
Nov 5, 2009
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0
One-hundred fifty years ago, Charles Darwin speculated that life likely originated in a warm little pond. There, Darwin supposed, chemical reactions and the odd lightning strike might have led to chains of amino acids that, ...
Evolution
Dec 21, 2022
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476
Since the HMS Beagle arrived in the Galapagos with Charles Darwin to meet a fateful family of finches, ecologists have struggled to understand a particularly perplexing question: Why is there a ridiculous abundance of species ...
Evolution
Oct 24, 2023
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28
A court in Ecuador has convicted a German tourist of trying to smuggle four threatened iguanas out of the Galapagos Islands in his luggage, authorities said Sunday.
Ecology
Jan 6, 2013
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Since Charles Darwin, biologists have pondered the mystery of "mimicry butterflies", which survive by copying the wing patterns of other butterflies that taste horrible to their predators, birds.
Plants & Animals
Aug 12, 2011
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0
(PhysOrg.com) -- In new research, UCLA scientists claim that "secondary sexual traits" like coloring may let animals know which species to avoid fighting.
Plants & Animals
Oct 31, 2009
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