Hummingbirds and their Asian and African counterparts, sunbirds, feed by sticking their tongues and beak tips into pools of nectar. While hummingbirds sop up the liquid with their spongy tongues and squeeze it out with their beaks, sunbirds found a different solution unique among vertebrates. A study by biologists at Brown University and UC Berkeley discovered that they create suction with their tongues against the roofs of their mouth to draw in nectar.

Harvard SEAS researchers show mathematically that when many robots share a space, adding a certain amount of randomness in their paths improves their efficiency.   

SAN DIEGO, APRIL 13, 2026 ― Jennifer Wargo, M.D., professor of Surgical Oncology and Genomic Medicine at The University of Texas MD Anderson Cancer Center, has been elected to the 2026 class of Fellows of the American Association for Cancer Research (AACR) Academy in recognition of her pioneering work to define interactions between the microbiome, cancer biology and treatment response. 

The eye is a highly specialized optical and mechanical system whose structural integrity and visual performance rely heavily on the precise arrangement of the extracellular matrix (ECM). As the primary structural protein of the ocular ECM, collagen provides not only physical support through its hierarchical self-assembled structure but also regulates cellular behavior via bioactive sequences. However, bridging the gap from natural tissues to synthetic biological scaffolds to achieve precise emulation of the complex microenvironments in the cornea, sclera, and retina remains a core challenge in ocular tissue engineering.  The review article titled "Ocular collagen: From architecture to biomaterials," published in Eye Discovery (2026) by researchers from East China University of Science and Technology, systematically evaluates the distribution logic of collagen across various ocular tissues. It discusses cutting-edge progress in constructing high-performance ophthalmic repair materials using physical, chemical, and biological methodologies.

In the deserts of southeastern Arizona, harvester ants congregate with serrated jaws agape outside the nests of much smaller cone ants. However, the nests’ inhabitants are not threatened. Instead, they crawl all over the harvester ants and lick and nibble their body surfaces—the first known example of an ant that cleans a much larger ant species. The unusual behavior, described for the first time this week in the journal Ecology and Evolution, was observed by entomologist Mark Moffett, a research associate at the Smithsonian's National Museum of Natural History.