Season 1

• 

  6.3/108 votes

  Survival Of The Fittest

  Season 1 Episode 1 - Aired 3/25/2016

  There are many fine examples of evolutionary history in the natural world. Whales evolved from land-dwelling creatures to today's marine mammals.

  Director: Unknown

  Writer: Unknown

• 

  5.9/1011 votes

  The Big Cats

  Season 1 Episode 2 - Aired 4/1/2016

  The leopard is perhaps the best-equipped big cat, with a population spread far and wide, but lions have almost no predators.

  Director: Unknown

  Writer: Unknown

• 

  6.0/108 votes

  The Great Desert Race

  Season 1 Episode 3 - Aired 4/1/2016

  Desert animals have evolved to handle heat and lack of water. This includes scorpions, which have existed since life first crawled from the sea.

  Director: Unknown

  Writer: Unknown

• 

  6.0/108 votes

  Herbivores

  Season 1 Episode 4 - Aired 4/1/2016

  The African Savannah sees thousands of battles each day. How do elephants survive on a diet that even the strictest vegetarian would avoid?

  Director: Unknown

  Writer: Unknown

• 

  7.0/107 votes

  Natural Warriors

  Season 1 Episode 5 - Aired 4/8/2016

  Males and females of some species fight viciously. Though they are usually not trying to kill each other, the fighting can result in death.

  Director: Unknown

  Writer: Unknown

• 

  6.6/107 votes

  Run Like The Wind

  Season 1 Episode 6 - Aired 4/8/2016

  With predators always looking for a meal, their prey must constantly avoid being eaten. Defensive adaptations add to their chances of survival.

  Director: Unknown

  Writer: Unknown

• 

  6.1/109 votes

  The Early Bird

  Season 1 Episode 7 - Aired 4/8/2016

  Attack and escape scenarios involving avian predators and their prey, including horizontal speeding and diving to avoid capture.

  Director: Unknown

  Writer: Unknown

• 

  6.5/108 votes

  Reptiles

  Season 1 Episode 8 - Aired 4/15/2016

  Crocodiles are descended from animals that roamed Earth 250 million years ago, while snakes rely on the sun to control their temperature.

  Director: Unknown

  Writer: Unknown

• 

  6.8/108 votes

  Defenses

  Season 1 Episode 9 - Aired 4/15/2016

  From insects that look like leaves and snakes that play dead to flying fish and poisonous toads, animals defend themselves in fascinating ways.

  Director: Unknown

  Writer: Unknown

• 

  N/A/100 votes

  Underwater Predators

  Season 1 Episode 10 - Aired 4/15/2016

  Almost all animals living in the sea have bodies designed for hunting or protection, and predators have adapted extreme measures to survive.

  Director: Unknown

  Writer: Unknown

• 

  N/A/100 votes

  Underwater Defences

  Season 1 Episode 11 - Aired 4/22/2016

  Protecting themselves underwater is a matter of invention and reinvention, so aquatic animals deploy an array of strategies just to stay alive.

  Director: Unknown

  Writer: Unknown

• 

  N/A/100 votes

  Underwater Prey's Defenses

  Season 1 Episode 12 - Aired 4/22/2016

  Protecting themselves underwater is a matter of invention and reinvention, so aquatic animals deploy an array of strategies just to stay alive.

  Director: Unknown

  Writer: Unknown

• 

  6.1/109 votes

  The Race Underfoot

  Season 1 Episode 13 - Aired 4/22/2016

  There are many reasons why insects survive, from strong, flexible shells to wings that give them the option of flying away from danger.

  Director: Unknown

  Writer: Unknown

• 

  N/A/100 votes

  After Dark

  Season 1 Episode 14 - Aired 4/29/2016

  Nocturnal animals use the dark to escape predators, avoid the heat of the day, and take turns sharing food and resources.

  Director: Unknown

  Writer: Unknown