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tag ancient dna developmental biology ecology evolution

Microscopy image of the cnidarian <em>Hydractinia symbiolongicarpus&nbsp;</em>with cell nuclei stained blue and oocytes stained yellow
Ancient Immunoglobulin Genes Help Cnidarians Decide to Fight or Fuse
Sophie Fessl, PhD | Oct 11, 2022 | 4 min read
Immunoglobulin genes might have evolved much earlier than previously expected, perhaps even in the common ancestor of Cnidarians and Bilateria, a study suggests.
Aristotelian Biology
Armand Marie Leroi | Sep 1, 2014 | 3 min read
The ancient Greek philosopher was the first scientist.
Ancient iceman has no modern kin
Jennifer Evans | Oct 29, 2008 | 3 min read
The 5,000-year-old mummy Öetzi, found in a glacier in the European alps 17 years ago and believed to be an ancestor of modern Europeans, actually belonged to a different genetic family and may have no living descendants, researchers report today in Current Biology. The researchers sequenced linkurl:mitochondrial DNA;http://www.the-scientist.com/article/display/19318/(mtDNA) extracted from Öetzi's intestines, offering the oldest complete mtDNA sequence of modern humans. "We sort of ass
a microscope image of a rotifer
Bacterial Enzyme Keeps Rotifers’ Transposable Elements in Check
Christie Wilcox, PhD | Mar 3, 2022 | 5 min read
Jumping genes in bdelloid rotifers are tamped down by DNA methylation performed by an enzyme pilfered from bacteria roughly 60 million years ago, a study finds.
Landscape illustration
Horizontal Gene Transfer Happens More Often Than Anyone Thought
Christie Wilcox, PhD | Jul 5, 2022 | 10+ min read
DNA passed to and from all kinds of organisms, even across kingdoms, has helped shape the tree of life, to a large and undisputed degree in microbes and also unexpectedly in multicellular fungi, plants, and animals.
Human DNA abstract dotwork vector illustration made of cloud of colored dots.
Adapting with a Little Help from Jumping Genes
Christie Wilcox, PhD | Jan 17, 2022 | 10+ min read
Long lambasted as junk DNA or genomic parasites, transposable elements turn out to be contributors to adaptation.
tibetan mastiff with ghostly wolves in the background
The Extinct Species Within
Christie Wilcox, PhD | Aug 6, 2021 | 10+ min read
The genomes of living animals are littered with DNA from long-gone relatives, providing a lens on evolution, past extinctions, and perhaps even solutions to agricultural problems.
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
Andy Carstens | Jan 3, 2023 | 10 min read
Forced to respond to a climate that’s changing faster than it ever has, it remains unclear whether species’ adaptations can keep pace.
Top 7 in Evolutionary Biology
Jef Akst | Aug 29, 2011 | 3 min read
A snapshot of the most highly ranked articles in evolutionary biology, from Faculty of 1000
Short Shrift to Evolution?
Barry Palevitz and Ricki Lewis | Feb 1, 1999 | 7 min read
Editor's Note: In this essay, the authors--both scientists and writers--discuss recent news stories on evolution and express their opinions on how the stories were handled by the mainstream press. Evolution took center stage at the National Association of Biology Teachers (NABT) annual meeting in Reno, Nev., Nov. 3-8, 1998. If the teachers needed a theme, evolution was a logical choice--after all, it underlies and unifies contemporary biology. But NABT had other fish to fry. Despite a spate of c

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