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Animals

Eagle

eagleSIZE:   Most eagles are large in size, 60-90 cm in length with a 1.8 m wingspan. The Americanharpy eagle is the largest of all the eagles, with length of 110 cm and a 2.4 m wingspan.
FUN FACTS:
  • Eagles areoften further divided into four categories depending on diet and physicalfeatures. Some examples include:
  • true or booted eagles -"booted" is a reference to the leg feathers, which extend all the waydown to the toes. Golden eagles (Aquila chrysaetos)are a type of true or booted eagle.
  • harpy eagles - the six types of harpyeagles can be identified by the crests on their heads.
  • fish eagles - diet is mainly fish.Bald eagles (Haliaeetus leucocephalus) are a type of fish eagle, but their dietalso consists of birds and small mammals. In addition, bald eagles arescavengers that harass other birds and steal their fish.
  • snake eagles - diet includes avariety of snakes. Bateleur eagles (Terathopius ecuadatus) are snake eagles

Eastern White-Bearded Wildebeest

white-bearded-wildebeestDESCRIPTION: This subspecies of wildebeest has awhite beard, unlike most other subspecies which have black beards; both sexeshave smooth, cowlike horns.
SIZE: Male - 1.25-1.45 m at the shoulder.Female - 1.15-1.42 m at the shoulder
WEIGHT:  Male - 165-274 kg. Female - 140-230 kg
FUN FACTS:     
  • Each yearan ancient spectacle, the single largest movement of wildlife, begins.White-bearded wildebeest migrate in search of fresh pastures and water. Suchmigrations may contain as many as one million individuals. Up to halfa million plains zebra and Thomson's gazelles often travel with the gnus. InNovember, the rains have resumed in the south and the green grasses of theNorth are depleted, the masses surge back to the fresh pastures. Thismigration takes the form of long columns, stretching thousands of miles.Visitors and natives say the ground trembles under their stampeding hooves. Predatorssuch as lions and hyenas follow the herd while crocodiles wait hungrily in therivers. They wait for a lone unhealthy gnu or youngster to break away from theothers; wading into a herd of over one million hoofed animals for a meal is toodangerous.
  • Wildebeests live in more densely packedherds than any other large mammal, except for humans.
  • Eighty percent of calves (sometimes upto half a million) are born within a 2-3 week period at the start of the rainyseason. Since predators can only take a limited number of prey at any giventime, there is a higher chance of survival for each individual calf.
  • Calves can stand and run within 3-7minutes after birth. They follow their mothers as they move with the herd.
  • At nightwhite-bearded wildebeest sleep on the ground in rows; this provides them withthe security of being in a group while allowing them space to run in case of anemergency

ElectricRay

electric-raySIZE: Atlantic torpedo ray may be up to 1.82 m in lengthIn general, female rays are larger thanmales.
WEIGHT: Atlantic torpedo ray may reach 90 kg
FUN FACTS:
  • Electric rays belong to the superorderBatoidea, which includes stingrays, skates, guitarfishes, and sawfishes. Liketheir relatives the sharks, batoids have skeletons made of tough connectivetissue called cartilage.
  • Atlantic torpedo rays (Torpedonobiliana), for example, live along the coastlines of Canada, the UnitedStates, United Kingdom,and South Africa.But they also have been found in the open ocean at depths of approximately 450 m. Blind electricrays (Typhlonarke aysoni) have been discovered in waters as deep as 900 m.
  • The mouth of the Australian coffin ray(Hypnos monopterygium) is enormous, allowing it to gulp prey half the size ofits body.
  • All livingcreatures produce electricity - even humans - but electric rays have twospecial kidney-shaped organs that generate and store electricity like abattery. Large Atlantic torpedo rays can generate enough power to produce ashock of about 220 volts, while smaller rays, like the lesser electric ray(Narcine brasiliensis) can only muster a shock of about 37 volts.
  • Most electric rays bury themselvesunder sand during the day and come out at night to feed. If prey isencountered, the ray will stun the creature with electricity. Then, the raywill guide the food with its pectoral fins to its mouth, which is located underits body.
  • Inaddition to stunning potential prey and dissuading prospective predators, theelectric organs of electric rays may also be used to detect prey and tocommunicate with each other.

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