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Evolution

From left, the Pierolapithecus cranium shortly after discovery, after initial preparation, and after virtual reconstruction.

Extinct ape gets a facelift, 12 million years later

Genomic analysis in snakes shows link between neutral, functional genetic diversity

Life reconstruction of the ancient mammal relative Thrinaxodon from the Triassic Period of Earth history. Similar in size and shape to a modern mink, Thrinaxodon is close to the inferred size of the ancestor of the group of ancient mammal relatives called cynodonts, and it shared that ancestor’s likely preference for animal food. Image by April Neander.

Survival of the newest: the mammals that survive mass extinctions aren’t as “boring” as scientists thought

Mandrill

Colorful primates don’t have better color vision

Artibeus jamaicensis, the Jamaican fruit bat

How bats evolved to avoid cancer

Researchers found that songbirds including the Northern Cardinal (pictured here) that live year-round in the urban core of San Antonio, Texas, had eyes about 5% smaller than members of the same species from the less bright outskirts.

Urban light pollution linked to smaller eyes in birds

COVID-19 virus is evolving rapidly in white-tailed deer

Prehistoric animals offer new evolutionary hints as riddles persist

The ancestral sweet receptor of all extant bats (Node C) was functionally sensitive to natural sugars, with a lower level of sugar sensitivity than modern pteropodid bats (Node A), suggesting that common ancestors of bats were omnivorous.

Common ancestors of bats were omnivorous suggested by resurrection of ancestral sweet receptors

Photo credit: Michael L. Smith

Bees and Wasps Independently Invent Ingenious Nest-Building Solutions

General morphology of P. kolymaensis, female. Scanning electron pictures (A, C), light microscopy photographs (E, F) and graphic presentations (B, D, G) of holotype: A, B) entire body, C, D) anterior ends, E) anterior body, F) perivulvar body region, G) tail. Abbreviations: l.f.–lateral field, ov–ovary, pro–procorpus of the pharynx, t.b.–terminal bulb of the pharynx, u–uterus with eggs, v–vulva, v.p.–ventral pore. Scale bars: A, D, E, F, G– 20 μm, B– 100 μm, C– 2 μm

Worm resurrected from Siberian permafrost laid dormant for 46,000 years

Prehistoric sea creature of the Cambrian period. Photo: Getty

Life on Earth didn’t arise as described in textbooks

Funky animal from Cambrian period. Pixabay

Genes for Learning, Aggression Traced Back 650 Million Years

Circular DNA, thought to be an accidental byproduct, is borrowing the cell’s DNA repair mechanisms to copy itself

DNA Parasites Manipulate Cellular Machinery for Their Own Advantage

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