animal behaviourist Develops your Dog's Hidden Intelligence Training -For-Dogs"> Click Here 👈 - These are the Oyame...
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- These are the Oyamel Fir Forests of Central Mexico. Their bows are heavy with millions of monarch butterflies. They take to the skies, in the millions. Any number of potential prey could venture past. Velvet isn't picky. She'll eat anything from rodents, and birds, small antelope, and monkeys. (ominous music) A slight miscalculation makes no difference. Once she set her sights on a target, there's no chance for escape. Her strike isn't the fastest in the snake world, but in over 20 feet per second, it does the job. The shock of the attack stuns the bird, while the complex venom cocktail rapidly floods its body. (birds tweeting) As she waits for her prey to die, velvet adjusts, her fangs. They can really get in the way sometimes. Within 10 minutes, it's all over and lunch is ready. Eating is a specialized process. Velvet unhinges as her jaw to allow her to open her mouth wide enough. Using rows of teeth to latch on, she drags her prey to a safe place where she can eat in peace. As spring warms the water along Mexico's west coast. The shift in temperature sparks a plankton blue. This upwelling of plankton attracts millions of pelagic red crabs to the surface, turning the waters off Baja, red. The bottom dwelling crabs rise from the depths to feed, and some believe to mate. But like the plankton they feed on, they're slaves to the current. The bite-size crustaceans become easy pickings for migrating seals and whales. Swarms of crabs clumped together. As different groups merge, they create a slick up to three miles long, so dense it blocks out the light. The rising plankton draws another wave of hungry migrants in from the Pacific. Thousands of giant eagle rays. (light orchestra music) They school together forming vast shoals across the Sea of Cortez. White wings taller than a man beat in a collective dance. But some want to stand out from the crowd. (majestic music) (water splashing) Despite weighing more than a ton, both males and females can launch six feet out of the water. (majestic music) It's all about getting noticed. And for those who do, there's a better chance of leaving with a mate. (dramatic orchestral music) - As the intense solar radiation evaporates the water, mineral salts are left behind. The lake's vivid color is caused by microscopic algae that thrive in it's caustic waters. The algae lure thousands of flamingos. Three different species come here to feed and breed. The James's Flamingo, the Andean Flamingo, and the Chilean Flamingo. Each species has a slightly different strategy for finding food. But they all use their beaks to save algae and other microorganisms from the water. One of the algae produces a reddish pigment that not only turns the water pink, but also anything that eats the algae, including the brine shrimp and the flamingos themselves. (orchestra playing warm, ambling melody) At the beginning of the dry season, male and female James's flamingos begin their courtship dance. The display normally takes place around noon, and may last for a couple of hours. (orchestra plays bright music) The more experienced the birds, the more elaborate and synchronized the dance. - Nearly three months have passed since Nagaina made it with the village male. It's now the end of May, and she'll soon be ready to lay. Most species of snake seek out a cavity or an abandoned burrow in which to lay their eggs, but not Nagaina. King Cobras are the only snakes that build a nest. It's a unique skill that allows Nagaina to select the perfect spot, to give her young the greatest chance of survival. On a slope, near the base of a tree, her nest is shaded from the hot sun, but more importantly, it won't get waterlogged by the monsoon rain. She's been hard at work for more than a week now. Coiling her body, she steadily amasses fallen leaves and twigs, drawing them together into a pile. (leaves rustling) It's a delicate process that could take a couple of weeks to complete. (leaves rustling) (birds tweeting) The rustling leaves attract attention. A rat snake on the lookout for rodents rummaging in the undergrowth. (ominous music) Approaching the layer of a snake killer is a dangerous mistake. But with an abdomen full of eggs, Nagaina has zero appetite. She has only one thing on her mind. At last, the nest is ready. More than a foot high and three feet wide, it's a masterpiece of engineering. Inside, Nagaina creates a small chamber in which she lays a clutch of up to 40 eggs. Once covered with more leaves, the chamber will stay at an almost constant 80 degrees and 90% humidity for the next three months. Her work complete, Nagaina stands guard. A queen on her throne. She won't budge until her babies are ready to hatch. The mongoose and wild boar that roam this forest with love to feast on her eggs. But they'd be foolish to try. Nothing is going to challenge this mother when it comes to her babies. - Mantis shrimp suburb themselves a reputation for being somewhat ill tempered. But scientists have discovered that there's another side to these macho males. This young hopeful is trying to catch the eye of a potential mate. He starts by showing off his paddle like antennae. His technique may not be very impressive to us, but he is in fact, sending the female secret signals. And that is possible because mantis shrimps can see and reflect a kind of light that absolutely no other creature in the world that we know of can see. The male display is a private invitation for this female to dance. So far. So good. She makes her way to the dance floor. (tango music) If the male can impress the female with his performance, she will choose him to father her offspring. It seems that this male has all the right moves. The final phase of courtship, however, usually takes place out of science within their burrows. (birds tweeting) - A few thousand feet up, spring comes later to the high elevation plains of Wyoming. Snow here can stick around well into April. The ground, just emerged from winter's cover, remains drab and brown, but as temperatures rise, the action heats up on the grasslands. It's time for prairie fowl to throw their spring dances to compete for mates. (orchestra playing ambling music) The male Greater-Prairie Chickens kick off the event with eye-catching, throat popping moves. (tango music) They force air through orange sacs on their necks. (tango music continues) The booming sound would draw females from over a mile away. The Sharp-tailed Grouse are next to get their groove on. Rapid fire tail rattles and fancy footwork help impress the females. (tango music continues) The most flamboyant display comes from the Greater Sage-Grouse. This male needs to get something off his chest. When inflated, his two large sacs do most of the dancing It's a spectacle of sight and sound would only a female grouse finds hard to resist. Mating season-- - To fly in this extraordinary way, hummingbirds have changed the structure of their wings and the way they beat them. Here in Ecuador, scientists Doug Altshuler, is working to analyze exactly how they do so. - Hummingbirds are remarkable animals. They have extreme adaptations and physiology and anatomy, and they also have a very unique behavior. They can hover. And the approach that we've taken is to study how those physiological and anatomical adaptations determine their hovering ability. - Using high-speed cameras, he records the mechanics of their flight in minute detail. He can slow down the action by around 40 times. And so observe exactly what's taking place. Most birds flap their wings up and down, but hummingbirds flap theirs more like insects. They twist their wings around between strokes, and so can generate lift when flapping both forwards and backwards. (rhythmic music) Doing this at high speed, puts a huge strain on their wings. So to withstand it, the wings have a special structure. - The hummingbird wing is very stiff, and undergoes a few changes in shape, as it rapidly beats back and forth. - They owe stiffness to a modification of the bones. The arm bones have shrunk, but the bones of the hand have elongated and support most of the wing surface. Twisting this wing of the shoulder and of the wrist, produces the hummingbirds' distinctive wing beat. - Marula leaves are sought after foliage in the Manyeleti Nature Reserve. The elephant picks just a few branches. But an army of caterpillars can destroy an entire canopy. The Luna Moth Caterpillar only has one purpose in its six week long life to eat as much as possible, and to build a silk cocoon for hibernation and metamorphosis In a month and a half, it supersizes from a pinhead at birth to a fat four-inch long worm. (warm, ambient music) On the last day, it stops to feed, finds the perfect branch, and lit by the moon, it spins a delicate silk cocoon. (warm, ambient music continues) The caterpillar labors all night. Instinctively, knowing how to build the perfect chamber, which he will occupy through winter. By morning, it gives the cocoon the finishing touches, and closes the door. But in spring will reveal a miracle of nature. During the winter months to come, the caterpillar will slowly transform into a beautiful moth. One of nature's most startling metamorphosis. - Polar Bears have good eyes. Like humans, they can see in color. So for them, too, the summertime Tundra is a visual feast. They leisurely stroll about. While all around them animals scurry visibly to make use of the short Arctic summer. (warm, ambient music) But mostly they indulge in the luxury of not being forced to do much at all. Most healthy adult males arrive on land fattened up for the long haul. Individuals like the Bruiser can survive without eating until the ice returns. For skinny bears and many families though, they'll need to find at least some nourishment to survive the summer. But for now, and for him, it's good to be the Bruiser. - These are the Oyamel Fir Forests of Central Mexico. This unique Alpine habitat is a relic from a time when the earth was cooler and wetter. Now only 2% of the original Fir trees remain. Their bows are heavy, but not with leaves. With millions of Monarch Butterflies. (light piano music) These individuals belong to a super generation. Survivors of an incredible 3000 mile journey that began in Canada and the Northern United States. They arrived five months ago and have remained motionless through the winter in a state of dormancy, Like a hibernating bear, they require the warmth of spring to awaken. (warm, ambient music) As the sun's first rays strike, there's no time to waste. (light piano music) They take to the skies. In the millions. (warm, ambient music) All synchronized to find a mate. For the females, there's no shortage of options, but for a male Monarch in Mexico, finding a partner means the ultimate sacrifice. Whether the males succeed or not, it's their last week on earth. This is a male, easily identified by the two black spots on his wings. He needs to mate and soon. His luck is in. A female and she's alone. He whisks her away from the surrounding chaos. Then injects her with sperm. He also donates a cocktail of nutrients to assist her in pregnancy and her long journey ahead. He loses up to one third of his body weight in the process. An overzealous male can overdo it and cause a female to explode. Not this time. Now carrying hundreds of fertilized eggs, this female, and millions of others like her, must embark on the second leg of their epic migration. They'll fly 900 miles back north through Mexico and into the United States. There they'll find food and a safe place to lay their eggs, which will give rise to the next generation to continue the journey north. As for the male, his journey ends here. His mate has literally suck the life out of him But his great, great grandchildren will be the next super generation. The ones strong enough to fly 3000 miles back to these ancient fir trees of Michoacan. ...
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