Parrot talk

Credit: Photo Heidi M. Thomsen During flock encounters, a single vocal interaction seems to be sufficient for making the decision of whether to recruit an individual or flock. Parrots are known for their splendid ability to imitate,…

Probing deeper into tumor tissues

Credit: © Corinna Friedrich, MDC / Charité Today as they did 100 years ago, doctors diagnose cancer by taking tissue samples from patients, which they usually fix in formalin for microscopic examination. In the past 20 years, genetic…