Scientists are finding that microscopic membranous bubbles called extracellular vesicles transmit messages from cells and do big jobs in many areas of biology — plus they might be useful for therapies.
In an evolving branch of forensic science, genealogists help solve crimes, sometimes identifying suspects with the DNA of distant relatives they’ve never met. As cold cases yield, concerns about privacy issues persist.
Ultrasound isn’t just for images. Sonogenetics and other promising technologies let researchers use focused sound waves to control genes and entire cells deep in the tissues of living animals, without surgery.
They worm into snails and infect the brains of fish. They’ve also found their way into Kevin Lafferty’s heart. He sees them as beautiful examples of sophisticated evolution, and as keys to ecosystem balance.
Evolution made insect ears many times over, resulting in a dazzling variety of forms found in spots all over the body. Biologists are digging deep into some of those ears to figure out how and why they came to be.