Bioethics.net

The brilliant, intricate patterns on butterfly wings — from haunting eye spots to iridescent splashes of blue — look as if they were painted on by teams of artists. Researchers thought that a complex collection of genes might be responsible, interacting to build up the final pattern. But two studies now suggest that two genes play an outsize role in determining the wing’s lines and colours. Turning off these ‘master’ genes disrupts the canvas, dulling the colours or turning the insects monochromatic.

A new study published in Journal of Medical Ethics by van der Zande et al1 further highlights why classifying pregnant women as a ‘vulnerable population’ in the context of research is deeply problematic. Because the designation of ‘vulnerable’ is otherwise applied to populations whose decision-making capacity about research participation is somehow compromised—such as children and adults of limited cognitive ability—many of us have been arguing for some time that using this designation for pregnant women is inappropriate and disrespectful.

It’s all fine and good to sign a climate treaty, but how do you know whether a country is keeping its word? Track it from space. Researchers have shown that observations by Earth-orbiting instruments can be used to estimate carbon dioxide (CO₂) emissions from individual power plants. NASA’s Orbiting Carbon Observatory 2, which was launched in July 2014, was designed to monitor the movement of CO₂ in and out of ecosystems worldwide.

PETA and other animal rights groups have hounded researchers for decades in hopes of shutting down animal experiments in the United States and elsewhere. But Lattin is an unusual target. She’s a self-professed animal lover with a background in bird rescue; her studies are far less invasive than the research PETA has traditionally gone after; and she’s only a postdoc, much younger and less established than any scientist the group has singled out before.