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Thursday, July 29, 2010 , Posted by ebizar at 4:00 PM

You are starting a journey into a world of senses different from your own…

We experience life through five main senses, but even these are better developed in some familiar animals.

Smell your way across an ocean as a salmon does.

See, through the multi-aspected eye of a fly, what a human hand looks like when it is about to strike. Amazing effects reveal the secrets of animal perception.

Episode 1: Sixth Sense

Animals use senses of which humans are unaware. Sensitivity to the earth’s electromagnetic fields, or to weather pressure, can be used to aid navigation. Some animals can predict earthquakes. Predators put these senses to lethal use: a shark homes in on the body electricity of its prey, vampire bats detect the infra-red radiation of blood, and a rattlesnake sees a ‘heat picture’ of its victim.

Episode 2: Seeing Sense

A vulture can spot a carcass from a great distance, the four-eyed fish can see above and below water simultaneously, a fly’s multi-faceted eye sees a very different world than a human eye, while other insects can see into ultra-violet light. And lions have an area on the retina which actually empathises with their prey.

Episode 3: Sound Sense

Human ears have a limited range and are deaf to a low-register elephant conversation or the high-pitched squeaking of mice. Whales use sonar to communicate across hundreds of miles of sea, while spiders listen out for the wingbeats of prey and the kangaroo rat has hearing so sensitive that it can hear the rattlesnake’s strike – and avoid it. Birds, meanwhile, use sounds to detect changes in the weather and as an aid to navigation.

Episode 4: Super Scents

Smell is invaluable in hunting, protecting a species, mating… and navigation. Petrels use it to find fish in the open sea, springboks emit an ‘alarm’ odour to warn the herd of a predator, salamanders inject their females with aphrodisiac, and a salmon’s epic journey across the ocean to spawn and die is achieved through its sense of smell.

Episode 5: Sense of Timing

Courting, egg-laying, hibernation… The cycles of the earth, moon and sun are the rhythms which govern all life. Every animal’s perception of time varies, according to its heart rate.A shrew lives 30 times faster than an elephant, so time appears to pass more slowly. Also shown is the rare 17-year eruption of the US cicada.

Episode 6: Making Sense

The final film shows how each animal has a unique view of the world derived from a combination of different senses.The mind creates mental maps for navigational skills, which can also be affected by genetic programming. Other super-senses have resulted from the need to hunt or avoid becoming a meal. The mind decides what skills it needs to survive.

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