Hewan - Hewan ini jarang bisa anda jumpai di kebun binatang atau di Aquarium aquarium besar untuk umum.
The axolotl, Ambystoma mexicanum,
is a neotenic salamander, closely related to the Tiger Salamander.
Larvae of this species fail to undergo metamorphosis, so the adults
remain aquatic and gilled. It is also called ajolote
(which is also a common name for different types of salamander). The
species originates from numerous lakes, such as Lake Xochimilco
underlying Mexico City. Axolotls are used extensively in scientific
research due to their ability to regenerate limbs.
In
the bituminous blackness of the deep sea, what an alluring sight to a
fish must be the luminescent organ dangling from the toothy jaws of
Thaumatichthys axeli, "Prince Axel's wonder-fish." The first specimen of
this black, 18-inch bottom-dweller was trawled from a depth of 11,778
feet in the Atlantic by the Galathea expedition of 1950-52. The voyage's
chronicler deemed the find "unquestionably the strangest catch of the
Galathea expedition, and altogether one of the oddest creatures in the
teeming variety of the fish world."
These
creatures live on or just underneath the surface of the very bottom of
the ocean, on the abyssal plain. Called "sea pigs", they are a type of
sea cucumber, which is a member of the same phylum as starfish and sea
urchins (Echinoderms). They look and act kind of like slugs do up here
on land. They feed on the mud of the sea floor, benefiting from the
organic materials that settle to the ocean bottom. Sea cucumbers,
starfish and sea urchins can be found in all depths of the ocean. For
reasons scientists don't yet understand, members of the phylum
Echinodermata (like the sea pigs) are extremely successful down in the
ocean depths.
Sakis,
or saki monkeys, are any of several New World monkeys of the genus
Pithecia. They are closely related to the bearded sakis of genus
Chiropotes. Sakis' range includes northern and central South America,
extending from the south of Colombia, over Peru, in northern Bolivia.
and into the central part of Brazil.
One
of the world's meanest-looking species, the sabre-tooth dracula fish
also lays claim as one of the most challenging freshwater sportfish.
Broken lines, battered lures, and shattered rods attest to the sheer
strength of these menacing predators, making it the ultimate quarry for
both the fly and plug anglers.
With
a mug like that, the star-nosed mole might seem to be in danger of
scaring away all its food. Luckily, these bizarre-looking creatures can
detect a snack and gulp it down all under a quarter of a second.
"Most predators take times ranging from minutes to seconds to handle their prey," said Ken Catania of Vanderbilt University. "The only things I've found that come even close are some species of fish."
The secret to the mole's impressive foraging ability is the 22 appendages that ring its nose. Nearly blind, the animal uses this sensitive, star-shaped flesh to feel around in its dark, underground environment. This mysterious mole has moves that put the best magician to shame: The energetic burrower can detect small prey animals and gulp them down with a speed that is literally too fast for the human eye to follow.
Scientists
have discovered a new species of bat that has large flat adhesive
organs, or suckers, attached to its thumbs and hind feet. This is a
remarkable find because the new bat belongs to a Family of bats endemic
to Madagascar--and one that was previously considered to include only
one rare species.
The
giant grenadier, Albatrossia pectoralis , is a very large rattail, the
only member of the genus Albatrossia, found in the north Pacific from
northern Japan to the Okhotsk and Bering seas, east to the Gulf of
Alaska, and south to northern Baja California in Mexico, at depths of
between 140 and 3,500 m. Its length is up to 2.1 m. The giant grenadier
has the usual greatly elongated pointed tail of the rattails.
Raccoon
Dogs (Nyctereutes procyonoides) are native to Japan, southeastern
Siberia and Manchuria. Average adult head and body length is about 65
cm (2 ft) and weight ranges from 4 to 10 kg (9 to 22 lb). Average
litters consist of 5 pups. Longevity is 3–4 years in the wild and up to
11 years in captivity.
The
creature, dubbed the "yeti crab," is so unusual that a whole new
family of animal had to be created to classify it. Its official name is
Kiwa hirsuta, and even after a year of study scientists say there's
still much about it they don't understand.
One mystery is the purpose of the fine, hairlike filaments that coat the crab's arms and legs. The fibers trap bacteria, which the crab may use as food. But some scientists think the germs may filter out the toxic minerals that spew from the deep-sea vents.
Fangtooths are beryciform fish of the family Anoplogastridae (sometimes spelled "Anoplogasteridae") that live in the deep sea. The name is from Greek anoplo meaning "unarmed" and gaster
meaning "stomach". With a circumglobal distribution in tropical and
cold-temperate waters, the family contains only two very similar
species, in one genus, with no known close relatives: the common fangtooth, Anoplogaster cornuta, found worldwide; and the shorthorned fangtooth, Anoplogaster brachycera, found in the tropical waters of the Pacific and Atlantic Ocean.
The
pelican eel or Eurypharynx pelecanoides is a deep-sea fish rarely seen
by humans, though the creatures are occasionally snagged in
fishermen's nets.The pelican eel's most notable feature is its enormous
mouth, much larger than its body. The mouth is loosely-hinged, and can
be opened wide enough to swallow a fish much larger than itself.
This
strange cartilaginous fish uses its long snout to scan over the sea
floor for the electrical impulses of its prey that bury in the muddy
sea floor, just like a metal detector. Like other chimaeras (such as
ghost and elephant sharks), these animals lay horny egg cases in which
their young are left to develop, potentially for up to one year. For
defense, most chimaeras have a venomous spine located in front of the
dorsal fin.
Long
extensions of three of this deep sea fish's fins allow it to stand on
the ocean bottom where it waits for small crustaceans to drift towards
it. The three elongated fins of the tripod fish may extend to nearly
one meter (3 ft 3 in) in length.
The
Japanese Giant Salamander (Andrias japonicus) reaches up to 1.44 m (4
ft 9 in), feeds on fish and crustaceans, and can live for up to 80
years. The Chinese Giant Salamander (Andrias davidianus) can reach a
length of 1.80 m (5 ft 11 in).
The
rarely seen king of herrings is the world's longest bony fish and has
been documented to 41 feet in length, with reports to 50 feet, and 600
pounds. Its head and body is silver with blue streaks, with blackish
streaks and spots on the body. The Oarfish (as it is also known as) is a
relatively obscure fish that is reported to move vertically through
the water in a column and is found between 3,300 feet deep and the
surface.
Attaining
an unconfirmed length of 3m (9+ft), the Mekong giant catfish grows
extremely quickly, reaching a mass of 150 to 200kg in only six years.
The largest catch recorded in Thailand since record-keeping began in
1981, was a female measuring 2.7 m (roughly 9ft) in length and weighing
293 kg(646 lb). This specimen, caught in 2005, is widely recognized as
the largest freshwater fish ever caught.
The
bigfin squids are a group of rarely seen cephalopods with a very
distinctive morphology.The family is known only from larval, paralarval,
and juvenile specimens, but some authorities believe the adult
creature has been seen: Several videos have been taken of animals
nicknamed the "long-arm squids", which appear to have a similar
morphology. Since none of the adult specimens have ever been captured
or sampled, it remains uncertain if they are the same genus, or only
distant relatives
The
Vampire Squid (Vampyroteuthis infernalis, lit. "vampire squid from
hell") is a small, deep-sea cirrate cephalopod. The Vampire Squid is an
extreme example of a deep-sea cephalopod, thought to reside at aphotic
(lightless) depths from 600-900 metres (2,000-3,000 feet) or more.
Within this region of the world's oceans is a discrete habitat known as
the oxygen minimum zone (OMZ). In order to cope with life in the
suffocating depths, vampire squid have developed several radical
adaptations.
Belonging to the Octopus suborder Cirrina, the genus Grimpoteuthis
consists of over a dozen rare and poorly-known species, all of which
are found in the extreme depths of the ocean. They are small, not
getting much bigger than 20 cm (8 in), and their common name comes from
the ear-like pair of fins (present in all cirrate octopuses, but
generally larger in the Dumbos) which are used to assist locomotion the
same way a squid uses its fins. Like other cirrate octopuses, the arms
of the Dumbo Octopus are completely webbed, and they also retain an
internal shell, something the more common incirrate octopuses (i.e.
every other kind of octopus) have lost entirely. Dumbo Octopuses spend
their time either sitting on the sea floor, or swimming just above it
searching for food.
The
Megamouth shark is an extremely rare and unusual species of deepwater
shark. Discovered in 1976, only a few have ever been seen and only
three recordings of it are on film.
Axolotl
Thaumatichthys axeli
Sea Pig
Saki Monkey
Dracula Fish
Star-Nosed Mole
"Most predators take times ranging from minutes to seconds to handle their prey," said Ken Catania of Vanderbilt University. "The only things I've found that come even close are some species of fish."
The secret to the mole's impressive foraging ability is the 22 appendages that ring its nose. Nearly blind, the animal uses this sensitive, star-shaped flesh to feel around in its dark, underground environment. This mysterious mole has moves that put the best magician to shame: The energetic burrower can detect small prey animals and gulp them down with a speed that is literally too fast for the human eye to follow.
Myzopoda schliemanni
Giant Grenadier
Racoon Dogs
Giant Otter
Giant otters may be as long as 2 metres (6 ft.) and weigh up to 30 kilos (70 lbs.)
Yeti Crab
One mystery is the purpose of the fine, hairlike filaments that coat the crab's arms and legs. The fibers trap bacteria, which the crab may use as food. But some scientists think the germs may filter out the toxic minerals that spew from the deep-sea vents.
Fangtooth
Pelican Eel
Chimaeras
Tripod Fish
Giant Salamander
Oarfish
Mekong Giant Catfish
Bigfin Squid
Vampire Squid
Dumbo Squid
Megamouth Shark
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