Animal Discovery

Giant river otter ( Pteronura brasiliensis )  Trevor Platty/Getty It's a South American carnivorous mammal and the longest member of Weasel family, reaching up to 1.7 metres (5.6ft). Giant otter is a social species with family groups typically supporting three to eight members. In the other side, this species is territorial and agressive between groups. The giant otter is a diurnal species that have behavior of activity during the daytime which is the opposite of nocturnal that thave behavior mostly at night. The giant otters lives mostly in and along the Amazon River and in the Pantanal . They are now in the endangered  status because of Habitat degradation and loss as the greatest current threat. The giant otter subsists almost exclusively on a diet of fish, particularly characins and catfish. But may also eat crabs, turtles, snakes, and small caiman. This species has no serious natural predators other than humans, although it must compete with other species, i

Yep, it is Rhinoceros Iguana ( Cyclura Cornuta ). This one species are not seem like usual Iguana you saw all this time. This is a threatened species of lizard in the family Iguanidae that is primarily found on the Carribean Island of Hispaniola , shared by the republic of Haiti and the Dominican republic (Wikipedia). They are vary and length from 60cm to 136cm (24 to 54in) and adults can weigh to 4.56 kilograms. They don't have length like "Green Iguana" you know that can grow up to 2 metres length. But, they do have unique distinctive, from their body, tail and its head. The male one will seem appearance of horn like what rhinoceros has. Horns will start to develop when they get bigger or matured. Females is the opposite. They won't have horns like the male. that is one thing to differ which one is male or female. Their spikes are short, not like the "Green Iguana" that will grow over the time. They have thick and shorter tails, but strong enough to

( Geochelone gigantea ) The smaller one but you won't skip over from the " Giants " list, it is Aldabra tortoise. This species are living and origin from Aldabra atoll island. The look-alike  to the #1 giant,  Galápagos, has similar physical appearance from far sight. When you take a closer look, you'll find that they both are different species. There is a common method to identifying the difference is to look for the presence of "nuchal scute" which is generally present above the neck (reptilemagazine). (from hariprajitno ) pictures on the left shown the figure of a  Galápagos that don't have any "nuchal scute" and pictures on the right shown the "nuchal scute" of an Aldabra. The other distinctives of Aldabra is the males has concave on their plastron (under shell) that aids in mating. They are dark gray to black in color with highly dome, thick carapace. They have long necks which helps with food gathering. Another difference

Setyo Augi Pribadi ( Chelonoidis Nigra and related species ) Galápagos Tortoise are known as the largest living species of tortoise. The  Galápagos name is a name of island that in part to  Republic of Ecuador (spanish)  which classified as an archipelago of volcanic islands .  Modern breed of this species can weigh up to 474 kg (919 lb). In the wild living, this animal has a lifespan of over 100 years , it is one of the longest-lived vertebrates. A captive indvidual lived at least 170 years. (Distinctives) It has distinctives of shell size and shape that vary between populations. On islands with humid highlands, the tortoise are larger, with domed shells and short necks; on islands with dry lowlands, the tortoise are smaller, with "saddleback" shells and long necks. as you can see the pictures above, on the left is called the "saddleback" that originated from dry lowlands; and on the right is originated from humid highlands.  (Behavior) The