Gene therapy restores night vision, and a new penguin species surfaces

A year later, 31 percent of the high-dose group and 24 percent of the low-dose group could read 15 or more additional letters on a low-light vision test. In the untreated control group, the number who hit that mark was zero 224. It's the first pivotal trial win this disease has ever had; a Biogen-acquired therapy failed in 2021, and MeiraGTx missed its primary goal in its own pivotal study. Beacon plans to start filing for approval by the end of the year 224.

Three were long treated as subspecies; the fourth, now named Pygoscelis kerguelensis, had never been formally recognized at all 6. Genetically it's distinct enough to count as its own species, even though to the eye it looks like any other gentoo: black back, white front, the same waddle. Scientists call this a cryptic species, one that hides in plain sight because nothing about its appearance gives it away.

The discovery solved a smaller, practical mystery along the way. Scientists have struggled for years to grow hindbrain neurons in a lab dish; it turns out they'd been trying to coax the wrong starting cells into becoming them. Loh's team can now grow those neurons directly 11.

Using an algorithm called DunedinPACE, the team found the children of mothers who got the larger monthly amount were aging more slowly than children in the comparison group. The effect showed up in the kids. It did not show up in the mothers themselves 90.

Since the 209-by-200-foot bridge opened in December, animal-vehicle collisions in the area have dropped 91 percent 204. Elk herds cross it. Pronghorn have returned to the highway's west side for the first time in decades. Biologists lined part of the bridge with logs so smaller animals, including the federally threatened Preble's meadow jumping mouse, have cover from predators as they cross 204.

Male chimps groom each other for hours. They embrace after fights and kiss the shoulders of their allies before a risky patrol into rival territory. Before the tensest moments, they've even been observed holding each other's genitals, a gesture researchers read as a display of trust 85. Higher-ranking males do sire more offspring, but most of the competitive pressure among them never turns into an actual fight; care and cooperation absorb it first.

Coated in beeswax to slow its breakdown in stomach acid, the battery powered devices inside pigs for up to three days before dissolving into the digestive tract, harmlessly, without leaving toxic fragments behind 16. So far it has only been tested in pigs.