Hooked mussels (smaller shells) are common inhabitants of oyster-reef habitats in Chesapeake Bay. Credit: © Chris Judy (MD DNR)     Restoring oysters — and their ability to filter large volumes of water — is widely seen as a key way to improve the health of Chesapeake Bay. New research makes this calculus even more […]

Doi cercetatori americani au reluat un studiu privind numarul armelor nucleare din lume si locurile in care se afla, cel mai probabil, acestea. Din datele lor reiese ca numarul focoaselor nucleare a scazut, insa exista in continuare state care isi ascund cu succes armele nucleare. Hans M. Kristensen si Robert S. Norris au publicat un […]