One Wire in the Mouse Brain Decides Whether a Fight Stays a Fight or Becomes a Bite A single brain pathway in male house mice (Mus musculus) decides whether a standoff stays theater or turns into teeth. Aki Takahashi and Koshiro Mitsui at the University of Tsukuba, publishing in iScience in 2026, traced a projection … Read more
A Dance Under a Second Light Point a UV flashlight at a bird-of-paradise specimen and its mouth lights up green-yellow, like something switched on inside it. Two centuries of naturalists studied these birds up close and never caught it, because human eyes can’t see it without help. A 2025 study found that 37 of the … Read more
The Bone Collector A caterpillar living in one Hawaiian mountain range builds itself a coat out of the dead: severed ant heads, fly wings and legs, weevil heads, and the shed skins of spiders, all glued onto a portable silk case it hauls around like a shell. The species belongs to Hyposmocoma, the Hawaiian genus … Read more
A skull you could balance on a fingertip just rewrote the lizard family tree A fossil skull about 0.59 inches (1.5 cm) long, pulled from rock along the shoreline near Sidmouth, Devon, belongs to a species newly named Agriodontosaurus helsbypetrae. It is now the oldest confirmed lepidosaur on record, the group that contains every living … Read more
Meet the ZoBorg Small robots built to climb from a flat floor onto a vertical wall still struggle with that exact move. A darkling beetle wearing a microchip backpack pulls it off in 71.2% of attempts, steered the whole way by a human holding a video game controller. Researchers at The University of Queensland, UNSW … Read more
Carabus blaptoides, a flightless ground beetle that hunts snails across the Japanese archipelago (also known by the older name Damaster blaptoides), comes in two builds that look like they should belong to two different species. One has a long, slender head and a narrow thorax built to reach deep inside a large snail’s shell. The … Read more
The Breakup Shows Up Months Before the Nest Box Is Empty Great tits (Parus major) that won’t re-pair the following spring don’t wait until spring to start pulling away. A study of the long-running Wytham Woods great tit project in Oxford, England, found that pairs headed for a split had already cut back on seeing … Read more
One humpback whale (Megaptera novaeangliae) swam just over 9,300 miles (15,000 km) between breeding grounds in Brazil and Australia, the longest journey ever documented for the species. A second whale crossed the same stretch of ocean going the other way. Humpbacks migrate farther than almost any other mammal on Earth. Just never like this. The … Read more
A mutation that kills mice did nothing to a naked mole rat A single gene fusion called EML4-ALK is one of the most reliable ways to grow a tumor in a laboratory. Splice it into a mouse’s lung tissue and cancer shows up within weeks; it is the same fusion that drives a subset of … Read more
They could see it, smell it, and never touched it Sixteen Asian elephants (Elephas maximus) faced a piece of fruit sitting inches away, in plain view, behind a wall they could see straight through. Not one tried to punch a trunk through that wall. They turned and walked to the other side, same as they … Read more
