Dark Heart - Season 1

By land, by air, and by sea, viewers can now experience the struggle that millions of creatures endure in the name of migration as wildlife photographers show just how deeply survival instincts have become ingrained into to the animals of planet Earth. From the monarch butterflies that swarm the highlands of Mexico to the birds who navigate by the stars and the millions of red crabs who make the perilous land journey across Christmas Island, this release offers a look at animal instinct in it's purest form.