Extras
On Costa Rica’s Pacific coast, turtles and jaguars collide in unexpected ways.
Who rules the streets -- and skies -- of the city?
Uncover the secret world of New York and London’s resilient pigeon flocks.
Discover how pigeons find a mate for life.
Times Square never shuts down, and neither do its pigeons.
Follow a female mountain lion in the Montana mountains over the course of a decade.
Mountain lions risk everything to hunt elk, prey more than twice their size.
A mother mountain lion risks her life to feed her six kittens.
Find out why deadly flash floods are on the rise and how we can protect ourselves from them.
Palestinians say bodies and detainees returned by Israel show signs of torture and abuse