World's Biggest Shark: The Megalodon

A typical adult Great White Shark measures 4 to 4.8 metres (13 to 16 ft) with a typical weight of 680 to 1,100 kilograms (1,500 to 2,450 lbs), females generally being larger than males. The maximum size of the Great White Shark has been subject to much debate, conjecture, and misinformation. Richard Ellis and John E. McCosker, both academic shark experts, devote a full chapter in their book, The Great White Shark (1991), to analysing various accounts of extreme size.


Today, most experts contend that the Great White Shark's "normal" maximum size is about 6 metres (20 ft), with a "normal" maximum weight of about 1,900 kilograms (4,200 lb).


For several decades, many ichthyological works, as well as the Guinness Book of World Records, listed two great white sharks as the largest individuals caught: an 11 metre (36 ft) great white captured in South Australian waters near Port Fairy in the 1870s, and an 11.3 metre (37.6 ft) shark trapped in a herring weir in New Brunswick, Canada in the 1930s. While this was the commonly accepted maximum size, reports of 7.5 to 10 metre (25 to 33.3 ft) Great White Sharks were common and often deemed credible.

Ants create a lifeboat in the Amazon jungle

A flood hits a fire ant colony in the Amazon jungle.


An amazing chance to see footage on how the species has adapted to water to protect their queen. From the BBC.



Source: BBC Worldwide

Bird Tango

Professor Nicky Clayton researches the social behaviour, intelligence and dance credentials of birds!


As an accomplished dancer in her own right she has fused her passions by collaborating with Rambert Dance Company to produce a Darwinian inspired ballet called The Comedy of Change.

Death of a Legend

Death of a Legend
Bill Mason, 1971, 49 min 30 s


This documentary film by Bill Mason is about wolves and the negative myths surrounding the animal.


Exceptional footage portrays the wolf's life cycle and the social organization of the pack, as well as other film of caribou, moose, deer and buffalo.


Mason later made a feature documentary on wolves (Cry of the Wild, 1973) that played theatrically throughout North America and earned $5 million at the box office.

Supersize Crocs

Crocodiles are too dangerous and too shy to approach with a tape measure.


Rom Whitaker and an assistant use precise photography and the help of a computer to make an accurate size comparison between a gharial and Rom's own body length.


The video takes viewers on a quest to find the largest crocodiles on the planet.

Birth of a Giraffe

From the "NATURE" episode "Tall Blondes," airing on PBS Sunday, December 17, 2006.


At the Cheyenne Mountain Zoo in Colorado Springs, viewers witness the birth of a giraffe, which enters the world six feet above ground.


For more information, visit pbs.org/nature

Love and Solidarity Among Animals

Love and Solidarity Among Animals
Runtime: 41:42


Why should an animal stand guard over its friends?


Who inspires them to endanger their own lives for the sake of their friends?


How the animals get exemplary qualities such as unity, cooperation, self-sacrifice, devotion in their societies?


In this film you will witness the surprising love and affection that can be seen in animals.