“By the time people come to work, all the birds are gone.” A long-exposure image of the Sydney Opera House reveals the ghostly trails of birds flying ... blue wavelengths are among the worst ...

MINNEAPOLIS (AP) — Two pigeons sneaked aboard a Delta Air Lines plane, delaying the flight twice. The airline confirmed that the pigeons got aboard a flight Saturday that was leaving Minneapolis ...

Watch this incredible footage of mammatus clouds forming over the sunset. Liz Legge from Indianapolis, USA, captured the rare event as the clouds passed through her neighbourhood.