Best of 2011

Biggest Animal Headlines of the Year

From Knut's death to the Bronx Zoo cobra, animal news went wild this year

Credit: Sean Gallup/Getty; Inset: Markus Schreiber/AP

Updated: Thursday Nov 24, 2011 | 06:00 AM EST

KNUT DIES

His doll-like eyes catapulted him to international fame, even landing him on the cover of Vanity Fair with Leonardo DiCaprio. Just four years later, polar bear Knut suddenly collapsed in March at the Berlin Zoo from brain swelling brought on by an infection, experts concluded.