Nova

First Flower

Charles Darwin dubbed the flower, of which there exist between 220,000 and 400,000 different types, "an abominable mystery" because of the difficulties in determining its origins. Here, the search for the flower's roots leads to a remote area in China.

Rating: TV-G

First Flower

Charles Darwin dubbed the flower, of which there exist between 220,000 and 400,000 different types, "an abominable mystery" because of the difficulties in determining its origins. Here, the search for the flower's roots leads to a remote area in China.

Rating: TV-G

Bone Digger

An expedition into a cavern located in the Australian outback finds complete skeletons of the Thylacoleo, a marsupial lion that died out some 30,000 to 50,000 years ago; and the remains of a giant kangaroo.

Rating: TV-PG

Cracking the Maya Code

The story of how the hieroglyphs used by the Maya, an ancient people who lived in what is now southern Mexico and Central America, were deciphered. Included: footage of Maya art and temples.

Rating: TV-PG

Bone Digger

An expedition into a cavern located in the Australian outback finds complete skeletons of the Thylacoleo, a marsupial lion that died out some 30,000 to 50,000 years ago; and the remains of a giant kangaroo.

Rating: TV-PG

Master of the Killer Ants

Driven by drought, termites invade the huts and granaries of the Mofu, a Cameroon tribe that relies on fierce dragon-shaped army ants to subdue the termites. Included: footage of the resulting termite-ant war.

Master of the Killer Ants

Driven by drought, termites invade the huts and granaries of the Mofu, a Cameroon tribe that relies on fierce dragon-shaped army ants to subdue the termites. Included: footage of the resulting termite-ant war.