Sea Animals

http://www.dolphins- world .com/what_dodolphins_eathtml



All penguins live South of the equator. Four of the 17 different species live along the coast of Antarctica and the Antarctic Peninsula. Others penguins can be found elsewhere within the Antarctic Circle to temperate regions further north, including New Zealand, southern Australia, the Falkland Islands, the Galápagos Islands and the coastlines of South America and southern Africa. There is 18 different species of penguins. There could be as many as 100 penguins on this earth. Some dolphins live in some important rivers. Specifically one of the best known species is the bottle-nose dolphin they live in every ocean of the world except the Arctic and the Antarctic oceans. The Atlantic spotted dolphins live all over the tropical and temperate areas of the Atlantic Ocean avoiding the Artic and Antartic regions.



Penguins eat mostly squids, fish, and krill. Some penguins chase after rock crabs. Penguins also eat small sea creatures. Lantern fish are the main fish eaten by Penguins.The Emperor penguin diet is made up fish, crustaceans and cephalopods. While some dolphins eat fish like herring, cod or mackerel, some others eat squids. Even large dolphins like the killer whales eat some other marine mammals like seals, sea lions, and sometime even turtles. Usually the amount of fish that dolphins eat depends on the kind of food that they hunt. While mackerel or herring have a lot of fat squid don't have much fat therefore to get the energy required for their activities dolphins have to eat more squid than mackerel. Other things dolphins use is corralling where fish is chased to shallow waters where they cannot escape. Some dolphins catch larger fish by hitting them with their tails to stun them. Dolphins swallow their food whole without chewing.They use the muscles at the back of their tongue and throat to squeeze the salt water out and the fish down. Baby penguins eat regurgitated from either their mom or dad which ever one goes and gets their food for them.



Penguins all blend in to keep them safe in the water. Penguins don't fly they swim in the water. Penguins can swim up to 15 miles per hour in water. Oil spills, water pollution, and the over harvesting can be harmful to the penguins. Every penguin uses their wings for swimming. Penguins usually swim in groups. Dolphins can not go very deep into the water because they will suffocate. Dolphins rest by swim slowly and surface, rest at the surface, or rest on the bottom. Among them, some think that dolphins jump while traveling to save energy as going through the air consume less energy than going through the water. Some people think that dolphins jumping up out of the water is to get a better view of distant things, mainly food. So, dolphins jump to locate food or food related activity like seagulls eating or pelicans hunting. Other people think that dolphins use jumping to communicate with a mate or with another pod.Some people even think that dolphins jump for cleaning themselves like trying to get rid of parasites while jumping. Some scientist think that they are having fun and playing around.Dolphins typically cruise at 5 to 7 miles per hour, but they have been clocked at 18 to 22 miles per hour with top speeds of 30 miles per hour. They commonly dive 200 meters and can remain underwater for 8 to 10 minutes by slowing their heart beat and controlling their blood flow. Dolphins only breathe voluntarily rather than automatically like humans, so if they're knocked unconscious, they stop breathing.

Dolphins travel in pods of up to 15. A pod typically consists of several adult females, calves and adult males.



Girl penguins have fluffy feathers. All penguins have layers of air, skin, and blubber. When a penguin is swimming near the surface it's very hard for the predators to see its white underside. Most dolphins learn very fast and can learn complicated language like demands.

Dolphins live up to 40 to 50 years. Most dolphins learn very fast and can learn complicated language like demands. All dolphins have 29 teeth in the upper jaw and 32 teeth on the lower jaw. In terms of their feeding habits, all dolphins are carnivores Unlike most mammals a dolphin's skin is hairless, thick and lacks glands. Dolphins can get up to 8 to 9 feet length. Also, they can weight up to 419 to 575 pounds. Most dolphins have up to 76 to 98 teeth. Dolphin calves, usually born in the spring, are 2.5- to 3-feet long and 25- to 40-pounds. Feeding on its mother's milk a calf will double in size in the first few weeks. The Mid-Atlantic dolphins will reach 7 to 10 feet in length and 300 to 500 pounds by their early teens. Penguins have short legs and tall torpedo-shaped bodies.They may appear awkward but penguins actually walk about as fast as people. Penguin's wings are called flappers. The largest species is the Emperor penguin. The adult average for this penguin would be 3ft 7in and weighs 75 pounds or more. But the smallest specie of the penguins is called the little blue penguin also known as Fairy penguin. It consist of 16in tall and 2.2 pounds. The common dolphin is 8 ft in length and 165 pounds. Dolphins are fish in form they have: streamlined, hairless bodies. Their powerful tail fins drive them through or out of the water. While their forefins and dorsal fin are used for steering. Dolphins are constantly shedding their skins. Dolphins accumulate no barnacles or other external parasites. A layer of blubber protects them from cold and seals small wounds. Dolphins breathe air through just one dorsal blowhole.




Dolphins have been interacting with humans since we've known they were here on this earth. Wild dolphins face many natural dangers within the ocean however the most overwhelming threat to their existence is man. Although some dolphin species are considered endangered species alarming statistics suggest that more and more dolphins are being killed by illegal dynamite fishing, being caught in fishing nets, collisions with boats and or propellers, marine pollution, disease and beaching due to sonar interference than ever before. Another cause of death for the dolphins is the injuries suffered by the entanglement in cages shark safety nets and fishing nets as well as collisions with ships and rotor blades.Noise pollution is also a great danger to dolphins in the wild.Activities like oil drilling, navigational sonars and ship engines create streams of underwater noise that can frighten disorient or even injure the dolphins.Besides noise pollution force some dolphins to move away from their feeding and breeding areas which causes different problems. Most experts believe that the social relationships formed by dolphins are actually long lasting and it has been reported that when dolphins meet other groups they often engage in a sort of greeting ceremony that suggests they are renewing old relationships.Traveling as much as they do dolphins must rest some time. They don't sleep they merely take cat naps at the ocean's surface for two or three minutes at a time. At night, those naps increase to seven or eight minutes.Because dolphins lack nostrils like most marine mammals dolphins surface every 15 to 20 seconds to clear their blow holes with a burst of air.On land they are able to stand upright, and because of their stature, they walk with a waddle. Normal penguin couples have one baby per year. Penguins have babies by laying eggs.


Global Warming

Global warming is the increase in the average temperature of Earth's near-surface air and oceans since the mid-20th century and its projected continuation. Expressed as a linear trend, this temperature rose by 0.74 ± 0.18 °C over the period 1906–2005. The rate of warming over the last half of that period was almost double that for the period as a whole (0.13 ± 0.03 °C per decade, versus 0.07 °C ± 0.02 °C per decade). The urban heat island effect is estimated to account for about 0.002 °C of warming per decade since 1900. Temperatures in the lower Troposphere have increased between 0.13 and 0.22 °C (0.22 and 0.4 °F) per decade since 1979, according to since 1979, according to satellite temperature measurements. Temperature is believed to have been relatively stable over the one or two thousand years before 1850, with regionally varying fluctuations such as the Medieval Warm Period and the Little Ice Age.The key impact of global warming on wildlife is habitat displacement, whereby ecosystems that animals have spent millions of years adapting to shift quickly. Ice giving way to water in polar bear habitat is just one example of this.Beyond habitat displacement, many scientists agree that global warming is causing a shift in the timing of various natural cyclical events in the lives of animals. Many birds have altered the timing of long-held migratory and reproductive routines to better sync up with a warming climate. And some hibernating animals are ending their slumbers earlier each year, perhaps due to warmer spring temperatures.To make matters worse, recent research contradicts the long-held hypothesis that different species coexisting in a particular ecosystem respond to global warming as a single entity. Instead, different species sharing like habitat are responding in dissimilar ways, tearing apart ecological communities millennia in the making. The hardest hit so far by global warming include caribou (reindeer), arctic foxes, toads, polar bears, penguins, gray wolves, tree swallows, painted turtles and salmon. The group fears that unless we take decisive steps to reverse global warming, more and more species will join the list of wildlife populations pushed to the brink of extinction by a changing climate. Melting arctic ice remove hunting ground from Polar Bears. Warmer water temperatures will cause population decline for trout, salmon and many other species that require cold water to survive. Rising ocean temperatures have already caused massive coral bleaching, leading to the collapse of the ecosystem which sustain huge numbers of fish.

smokestacks.jpg caribou.jpg