Extras
On Costa Rica’s Pacific coast, turtles and jaguars collide in unexpected ways.
Uncover the secret world of New York and London’s resilient pigeon flocks.
Who rules the streets -- and skies -- of the city?
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.
A mother mountain lion risks her life to feed her six kittens.
Mountain lions risk everything to hunt elk, prey more than twice their size.
Find out why deadly flash floods are on the rise and how we can protect ourselves from them.
Jonathan Karl explores Trump's focus on retribution in new book
Latest Episodes
Marva Allen-Simms; John Morales; Shayna Lewis; Arjan Hehenkamp; David Ovalle
