A new analysis reveals that overfishing has caused populations of chondrichthyan fishes -- sharks, rays, and chimaeras -- to decline by more than 50 per cent since 1970. To determine the consequences, ...

CBSE Class 12 practical examinations for the 2026 board exams are being scheduled in many schools during the second half of ...

What we know of the birth of a black hole has traditionally aligned with our perception of black holes themselves: dark, ...