Tinkering with worm sex to shed light on evolution

This post contributed by Nadine Lymn, ESA Director of Public Affairs The roundworm Caenorhabditis elegans (C. elegans) is a tiny laboratory animal that researchers have worked with for decades.  As a hermaphrodite, C. elegans makes both sperm and eggs and can reproduce by self-fertilization.  In contrast to humans, where hermaphrodites are rare, for C. elegans, this is its normal state.   However, male individuals, with only male...

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Scientists dig up the history of the mole’s extra ‘thumb’

Marcelo Sánchez-Villagra from the University of Zurich and researchers have uncovered the evolutionary history of the mole’s extra “thumb.” As it turns out, this polydactyl animal evolved an elongated wrist bone to serve as a sort of extra finger, widening the paw for more effective tunneling. The researchers examined embryos of the Iberian mole (Talpa occidentalis) and the closely related—but five-fingered—North American least shrew...

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Panda paradox: Which came first, a taste for bamboo or a distaste for meat?

This post contributed by Monica Kanojia, Administrative Assistant/Governance for ESA While a vegetarian lifestyle is a choice made by omnivorous humans, the panda population may have been forced to convert  to a vegetarian diet between 2 and 7 million years ago to ensure survival. The preference for bamboo is unusual for pandasbecause they are classified as carnivores  even though their diet is 99% bamboo. Even more unusual is the...

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From the Community: space bacteria, chimeras and sea turtles

Citizen scientist notices thousands of birds trapped in the lights of this year’s 9/11 memorial in New York City, endangered turtles get a second chance in Florida, flu viruses last longer in cool, dry environments, a blogger sets up a serendipitous research collaboration and the Potomac River shows signs of improvement due to aquatic conservation efforts. Here is research in ecology from mid-September.

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From the Community: shark science, reconciliation ecology and Biodiversity 100

An analysis of Shark Week, research on reconciliation ecology from ESA’s annual meeting, flowers that are genetically predisposed to adapting to climate change, endangered, purring tit monkey species found in Colombia amidst violence and the details on the antibiotic-resistant “superbug.” Here is the latest in ecological science from the second week in August.

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Genome reveals olfactory communication in the zebra finch

In an article published earlier this week in Nature, researchers revealed the complete genome of the zebra finch and focused on the intricacies of their vocal communication. The zebra finch, the males of which are known to learn and repeat the same song generation after generation, show 800 active genes involved in vocalization. One group of researchers, however, found more hidden in the code. Doron Lancet and Tsviya Olender of the...

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From the Community: February edition

Fruit fly behavior mapped, resilience theory in an urban setting, changing the universe’s birthdate and genetic diversity in an all-female species. Here are extra news stories and studies on ecological science for the month of February.

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