Skip to main content
Premium Trial:

Request an Annual Quote

But How Fast Do the Wings Beat?

The smallest avian genomes are those of hummingbirds, report T. Ryan Gregory and his colleagues in Proceedings of the Royal Society B. According to the paper abstract, the genome sizes of birds are thought to be inhibited by flight's metabolic demands and by the relationship between nuclear DNA content and the size of red bloods cells. From that hypothesis, it was thought that hummingbirds, which can hover — a power-draining exercise — would have the smallest genomes of birds. Gregory and his colleagues measured the genomes of 37 hummingbird species, with the sizes ranging between 0.91 picograms for the black-chinned hummingbird to 1.29 pg for the wedge-billed hummingbird.

The Scan

Billions for Antivirals

The US is putting $3.2 billion toward a program to develop antivirals to treat COVID-19 in its early stages, the Wall Street Journal reports.

NFT of the Web

Tim Berners-Lee, who developed the World Wide Web, is auctioning its original source code as a non-fungible token, Reuters reports.

23andMe on the Nasdaq

23andMe's shares rose more than 20 percent following its merger with a special purpose acquisition company, as GenomeWeb has reported.

Science Papers Present GWAS of Brain Structure, System for Controlled Gene Transfer

In Science this week: genome-wide association study ties variants to white matter stricture in the brain, and more.