The Blue whale (Balaenoptera musculus) is a marine mammal and a baleen whale. It is the largest animal known to have ever existed. The Blue whale was once abundant in nearly all the Earth's oceans until the end of the 19th century. It was hunted...
The Killer whale (Orcinus orca) is a toothed whale belonging to the oceanic dolphin family. It is the largest member of this family. The sophisticated hunting techniques and vocal behaviors of Killer whales have been described as manifestations of...
The Sperm whale or cachalot (Physeter macrocephalus) is the largest of the toothed whales and the largest toothed predator. It is the only living member of the genus Physeter and one of three extant species in the sperm whale family, along with the...
The dugong (Dugong dugon) is one of four living species of the order Sirenia, which also includes three species of manatees. It is the only living representative of the once-diverse family Dugongidae; its closest modern relative, Steller's sea cow...
The Humpback whale (Megaptera novaeangliae) is a species of baleen whale. It is a rorqual; a member of the family Balaenopteridae. The Humpback whale is known for breaching and other distinctive surface behaviors, making it popular with whale...
The unusual-looking fossa (Cryptoprocta ferox) from Madagascar looks like a puma and has both canine and feline features. It is the largest mammalian carnivore on the island, and preys mainly on lemurs, pursuing them through the trees with...
The Aye-aye (Daubentonia madagascariensis) is a long-fingered lemur that inhabits the rainforests in Madagascar. It is the world’s largest nocturnal primate and has a unique appearance. When first discovered, it was thought to be a type of large...
The False killer whale (Pseudorca crassidens) is a species of oceanic dolphin that is the only extant representative of the genus Pseudorca. It is found in oceans worldwide but mainly frequents tropical regions. The name "false killer whale" comes...
The Fin whale (Balaenoptera physalus) is a cetacean belonging to the parvorder of baleen whales. It is the second-longest species of cetacean on Earth after the Blue whale. American naturalist Roy Chapman Andrews called the fin whale "the greyhound...
The Ring-tailed lemur (Lemur catta) is a large strepsirrhine primate and the most recognized lemur. It belongs to Lemuridae, one of five lemur families, and is the only member of the Lemur genus. Like all lemurs it is endemic to the island of...
The Cuvier's beaked whale (Ziphius cavirostris) is the most widely distributed of all beaked whales in the family Ziphiidae. It is smaller than most baleen whales yet large among beaked whales. Cuvier's beaked whale is pelagic and occurs in waters...
The Sei whale (Balaenoptera borealis) is a baleen whale, the third-largest rorqual after the Blue whale and the Fin whale. It inhabits most oceans and adjoining seas and prefers deep offshore waters. The whale's name comes from the Norwegian word...
The Southern right whale (Eubalaena australis) is a baleen whale, one of three species classified as right whales. These whales are known to be rather active on the water surface and curious towards human vessels. They like to interact with humans...
The Common bottlenose dolphin (Tursiops truncatus) is a wide-ranging marine mammal of the family Delphinidae. The common bottlenose dolphin is a very familiar dolphin species due to the wide exposure it receives in captivity in marine parks and...
The spinner dolphin (Stenella longirostris ) is a small dolphin found in off-shore tropical waters around the world. It is famous for its acrobatic displays in which it rotates around its longitudinal axis as it leaps through the air. It is a member...
The indri (Indri indri ), also called the babakoto, is one of the largest living lemurs, with a head-and-body length of about 64–72 cm (25–28+1⁄2 in) and a weight of between 6 and 9.5 kg (13 and 21 lb). It has a black and white coat and maintains an...
Risso's dolphin (Grampus griseus) is one of the most mysterious and little known-species of dolphin with a rather unusual appearance. It is named after Antoine Risso, whose study of the animal formed the basis of the recognized description by...
The Melon-headed whale (Peponocephala electra) belongs to the oceanic dolphin family. It is closely related to the Pygmy killer whale and Pilot whale. Collectively these dolphin species are known by the common name blackfish. Melon-headed whales...
The pygmy sperm whale (Kogia breviceps ) is one of two extant species in the family Kogiidae in the sperm whale superfamily. They are not often sighted at sea, and most of what is known about them comes from the examination of stranded specimens.
A small whale (smaller than some dolphins), the Dwarf sperm whale (Kogia sima) is a rare and insufficiently explored species. Most of the available information about this animal is taken from occasional strandings. The Dwarf sperm whale is quite...
Coquerel's sifaka (Propithecus coquereli ) is a diurnal, medium-sized lemur of the sifaka genus Propithecus. It is native to northwest Madagascar. Coquerel's sifaka was once considered to be a subspecies of Verreaux's sifaka, but was eventually...
The pygmy killer whale (Feresa attenuata ) is a poorly known and rarely seen oceanic dolphin. It derives its common name from sharing some physical characteristics with the orca also known as the killer whale. It is the smallest cetacean species...
Omura's whale or the dwarf fin whale (Balaenoptera omurai ) is a species of rorqual about which very little is known. Before its formal description, it was referred to as a small, dwarf or pygmy form of Bryde's whale by various sources. The common...
Madame Berthe's mouse lemur (Microcebus berthae ) or Berthe's mouse lemur is the smallest of the mouse lemurs and the smallest primate in the world; the average body length is 9.2 cm (3.6 in) and seasonal weight is around 30 g (1.1 oz). Microcebus...
The lowland streaked tenrec (Hemicentetes semispinosus ) is a small tenrec found in Madagascar. It belongs to the family Tenrecidae in the order Afrosoricida, and more specifically to the subfamily of the spiny tenrecs Tenrecinae. Its natural...
Goodman's mouse lemur (Microcebus lehilahytsara ) is a species of mouse lemur from the region near Andasibe in eastern Madagascar. The species is named in honor of primatologist Steven M. Goodman. "Lehilahytsara" is a combination of the Malagasy...
The short-finned pilot whale (Globicephala macrorhynchus ) is one of the two species of cetaceans in the genus Globicephala, which it shares with the long-finned pilot whale (G. melas ). It is part of the oceanic dolphin family (Delphinidae).It has...
The black-and-white ruffed lemur (Varecia variegata ) is an endangered species of ruffed lemur, one of two which are endemic to the island of Madagascar. Despite having a larger range than the red ruffed lemur, it has a much smaller population that...
The striped dolphin (Stenella coeruleoalba ) is an extensively studied dolphin found in temperate and tropical waters of all the world's oceans. It is a member of the oceanic dolphin family, Delphinidae.
The red ruffed lemur (Varecia rubra ) is one of two species in the genus Varecia, the ruffed lemurs; the other is the black-and-white ruffed lemur (Varecia variegata ). Like all lemurs, it is native to Madagascar. It occurs only in the rainforests...
The Indo-Pacific bottlenose dolphin (Tursiops aduncus ) is a species of bottlenose dolphin. This dolphin grows to 2.6 m (8.5 ft) long, and weighs up to 230 kg (510 lb). It lives in the waters around India, northern Australia, South China, the Red...
The silky sifaka (Propithecus candidus ) is a large lemur characterized by long, silky, white fur. It has a very restricted range in northeastern Madagascar, where it is known locally as the simpona. It is one of the rarest mammals on Earth. The...
The Malagasy or striped civet (Fossa fossana ), also known as the fanaloka (Malagasy, ) or jabady, is an euplerid endemic to Madagascar.The Malagasy civet is a small mammal, about 47 centimetres (19 in) long excluding the tail (which is only about...
The rough-toothed dolphin (Steno bredanensis ) is a species of dolphin that can be found in deep warm and tropical waters around the world.The species was first described by Georges Cuvier in 1823. The genus name Steno, of which this species is the...
The gray mouse lemur (Microcebus murinus ), grey mouse lemur or lesser mouse lemur, is a small lemur, a type of strepsirrhine primate, found only on the island of Madagascar. Weighing 58 to 67 grams (2.0 to 2.4 oz), it is the largest of the mouse...
The lesser hedgehog tenrec (Echinops telfairi ) is a species of mammal in the family Tenrecidae.It is the only species in the genus Echinops and is named in honour of Charles Telfair.
Verreaux's sifaka (Propithecus verreauxi ), or the white sifaka, is a medium-sized primate in one of the lemur families, the Indriidae. It lives in Madagascar and can be found in a variety of habitats from rainforest to western Madagascar dry...
The pantropical spotted dolphin (Stenella attenuata ) is a species of dolphin found in all the world's temperate and tropical oceans. The species was beginning to come under threat due to the killing of millions of individuals in tuna purse seines....
Blainville's beaked whale (Mesoplodon densirostris ), or the dense-beaked whale, is believed to be the widest ranging mesoplodont whale. The French zoologist Henri de Blainville first described the species in 1817 from a small piece of jaw — the...
The common dolphin (Delphinus delphis ) is the most abundant cetacean in the world, with a global population of about six million. Despite this fact and its vernacular name, the common dolphin is not thought of as the archetypal dolphin, with that...
The golden bamboo lemur (Hapalemur aureus ), bokombolomena or varibolomena in Malagasy, is a medium-sized bamboo lemur endemic to south-eastern Madagascar.
The blue-eyed black lemur (Eulemur flavifrons ), also known as the Sclater's lemur, is a species of true lemur. It can attain a body length of 39–45 cm, a tail length of 51–65 cm- a total length of 90–100 cm, and a weight of 1.8-1.9 kg. Being a...
