What's happening to the most remote coral reefs on Earth?

In the middle of the Indian Ocean lies some of the last coral reef wilderness on Earth. The Chagos Archipelago, a collection of atolls, including Earth's largest—the Great Chagos Bank—is home to reefs that have been largely ...

Retroviruses are re-writing the koala genome and causing cancer

The koala retrovirus (KoRV) is a virus which, like other retroviruses such as HIV, inserts itself into the DNA of an infected cell. At some point in the past 50,000 years, KoRV has infected the egg or sperm cells of koalas, ...

Appearance, social norms keep students off Zoom cameras

When the semester shifted online amid the COVID-19 pandemic last spring, Cornell University instructor Mark Sarvary, and his teaching staff decided to encourage—but not require—students to switch on their cameras.

No insect crisis in the Arctic—yet

Climate change is more pronounced in the Arctic than anywhere else on the planet, raising concerns about the ability of wildlife to cope with the new conditions. A new study shows that rare insects are declining, suggesting ...

Reverse engineering 3-D chromosome models for individual cells

Genome analysis can provide information on genes and their location on a strand of DNA, but such analysis reveals little about their spatial location in relation to one another within chromosomes—the highly complex, three-dimensional ...

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