Thursday, 18 October 2012

mammals

18 orders


order----Monotremata-------(EGG LAYING MAMMAL)


pangolin(ANT EATER)----TEETH LESS MAMMAL

PLATYPUS---IS THE LINK SPECIES BETWN REPTILE AND MAMMAL



ORDER-----Didelphimorphia

MARSUPIALS---CLASS

BAG IN THEIR STOMACH------KANGAROO, OPOSSUM

ACTS AS DEAD AND ESCAPES FROM DER ENEMIES-----OPOSSUM


ORDER---RODENTIA

Forty percent of mammal species are rodents, and they are found in vast numbers on all continents other than Antarctica. Common rodents include miceratssquirrelsporcupinesbeaversguinea pigs, and hamsters.Rodents use their sharp incisors to gnaw wood, break into food, and bite predators.


The capybara  is the largest SPECIES rodent in the world. Its closest relative TO guinea pigs.





MAMMAL LIVING IN WATER

dolphins and whales are completely dependent on the marine environment for all stages of their life, whereas seals feed in the ocean, but breed on land. Marine mammals can be subdivided into four recognised groups; cetaceans (whalesdolphins and porpoises), pinnipeds (sealssea lions andwalruses), sirenians (manatees and dugongs), and fissipeds, which are the group of carnivores with separate digits (the polar bear, and two species of otter). Both cetaceans and sirenians are fully aquatic and therefore are obligate ocean dwellers. Pinnipeds are semi-aquatic; they spend the majority of their time in the water, but need to return to land for important activities such as matingbreeding and molting

DOLPHINS SLEEP WITH ONE EYE CLOSED

6,500 KG IS THE WEIGHT OF THE BIGGEST MAMMAL BLUE WHALE
HEART BEAT FOR BLUE WHALE IS 4 TO 8 TIMES PER MINUTE


GROUP OF WHALES ARE CALLED-------SCHOOL

dugong --- IS CALLED AS  sea cow


SEAL IS CALLED AS SEA LION



CARNIVORES ONLY HAS CANINE

LARGEST CARNIVORE IS POLAR BEAR






 HUMAN BEINGS ARE THE SPECIES WITH HIGHEST LIFE SPAN IN MAMMALS





SCEINTIFIC NAME

CAT------Felis domestica

TIGER-----




PHOBIA

AILUROPHOBIA------- FEAR OF CAT









PREGNANCY PERIOD


RAT-----21 DAYS

ELEPHANT--- 18 MONTHS

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