Recent Posts by Pangaea Biosciences

How some whales live more than 200 years

Bowhead whales (Balaena mysticetus), denizens of Arctic seas, are known to live more than 200 years, yet they show few signs of the age-related ailments that plague other animals, including humans. Even the bowhead’s closest cetacean relative, the much smaller minke whale, lives only 50 years. That suggests the larger whales (which have more than…
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IPCC report: Climate change threatens irreversible and dangerous impacts, but options exist to limit its effects

Human influence on the climate system is clear and growing, with impacts observed on all continents. If left unchecked, climate change will increase the likelihood of severe, pervasive and irreversible impacts for people and ecosystems. However, options are available to adapt to climate change and implementing stringent mitigations activities can ensure that the impacts of…
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The simple math that explains why you may (or may not) get cancer

Why? That’s the first word on many lips after a cancer diagnosis. “It’s a perfectly reasonable question,” says Bert Vogelstein, a cancer geneticist at Johns Hopkins University in Baltimore, Maryland, who has spent a lifetime trying to answer it. Thanks to his friendship with a recently minted Ph.D. in applied mathematics, the two now propose…
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Epic Short Film ‘Wanderers’ Envisions Humanity’s Future in Space

Wanderers - a short film by Erik Wernquist from Erik Wernquist on Vimeo. "Wanderers" is a short science fiction film by Erik Wernquist – a digital artist and animator from Stockholm, Sweden. Wernquist notes that the film is a vision of humanity's future expansion into the solar system. Although admittedly speculative, the visuals in the…
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Egg and sperm race: Scientists create precursors to human egg and sperm

Scientists at the University of Cambridge working with the Weizmann Institute have created primordial germ cells -- cells that will go on to become egg and sperm -- using human embryonic stem cells. Although this had already been done using rodent stem cells, the study, published in the journal Cell, is the first time this…
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Bone Density Drop in Modern Humans Linked to Less Physical Activity

The relatively lightly built skeletons of modern humans developed late in evolutionary history, and may have been the result of a shift away from a nomadic lifestyle to a more settled one, according to a new study. These findings may shed light on modern bone conditions such asosteoporosis, the scientists said. Bone is one of…
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Hands and Fins Share Common Genetic Origin

Scientists have long wanted to know whether modern hands are related to the fins of fish, and now a new study finally reveals these structures are, indeed, related. Researchers compared the genetic sequence of an unusual freshwater fish with that of mice, and found that the genes involved in the development of the mice's hands…
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Ancient Eye Cells Suggest Color Vision Is 300 Million Years Old

Fossilized rod and cone cells — the kinds that help people see — have been discovered for the first time, researchers say. The finding reveals that such eye cells have existed for at least 300 million years, and that the ancient fish they were discovered in likely saw in color, according to the study's scientists.…
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New, tighter timeline confirms ancient volcanism aligned with dinosaurs’ extinction

A definitive geological timeline shows that a series of massive volcanic explosions 66 million years ago spewed enormous amounts of climate-altering gases into the atmosphere immediately before and during the extinction event that claimed Earth's non-avian dinosaurs, according to new research from Princeton University. A primeval volcanic range in western India known as the Deccan…
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New species found in the deepest trench on Earth

Whitman biology professor Paul Yancey and students Anna Downing '16 and Chloe Weinstock '17 have returned from the first detailed study of the Mariana Trench aboard Schmidt Ocean Institute's research vessel Falkor. The Mariana Trench -- located in the Western Pacific near Guam -- has been the focus of high-profile voyages to conquer Challenger Deep,…
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