Animals World

List of animals on letter S

Salamander and Newt

Salamander and Newt

Type of animal science: Anatomy, classification
Fields of study: Anatomy, conservation biology, herpetology, systematics (taxonomy)
Nearly four hundred species of salamanders and newts are classified in the order Caudata. The two areas of greatest diversity of species in the world are in the southeastern United States and in Mexico and Central America.

Salmon and Trout

Salmon and Trout

Type of animal science: Classification
Fields of study: Anatomy, ecology, marine biology, reproduction science
Salmon and trout are salmonid food and game fishes of the Northern Hemisphere.

Sauropod

Sauropod

Type of animal science: Classification, evolution
Fields of study: Anatomy, evolutionary science, paleontology, systematics (taxonomy)
Sauropods are a group of dinosaurs that include the largest land animals that ever existed. Together with the theropods, or carnivorous dinosaurs, they form a group known as the Saurischia.

Scorpions

Scorpions

Type of animal science: Anatomy, classification, ecology
Fields of study: Anatomy, ecology, invertebrate biology, systematics (taxonomy), zoology
Scorpions are one of the most ancient land animals, having evolved over 400 million years ago. There are over 1,300 species of scorpions occurring over every continent except Antarctica. Scorpions are known for their stinging apparatus, but relatively few species pose any danger to humans.

Seahorse

Seahorse

Type of animal science: Classification, reproduction
Fields of study: Anatomy, conservation biology, ethology, marine biology, physiology, reproduction science, wildlife ecology
At least thirty-five species of seahorses, classified in the genus of Hippocampus, live in shallow subtropical coastal areas around the world. They swim in an upright position and have a head suggestive of a horse, a prickly looking body, and a prehensile tail. The male incubates eggs in a pouch in its abdomen and gives birth to live young.

Seal and Walrus

Seal and Walrus

Type of animal science: Classification
Fields of study: Anatomy, ethology, genetics, marine biology, physiology
Essentially aquatic, warm-blooded mammals, seals and walruses are widely distributed throughout the world, although most of them gravitate to the colder areas.

Shark

Shark

Type of animal science: Classification
Fields of study: Anatomy, systematics (taxonomy), zoology
Cartilaginous fishes constitute one of the seven living classes of vertebrates. There are about seven hundred living species of sharks, rays, skates, and ratfishes in this vertebrate group that has ancient origins.

Sheep

Sheep

Type of animal science: Classification
Fields of study: Anatomy, zoology
Over nine hundred breeds of sheep have been identified worldwide, and four hundred have significant research data available to allow for distinctive, productive evaluation.

Shrew

Shrew

Type of animal science: Anatomy, behavior, classification, reproduction
Fields of study: Anatomy, classification, zoology
Small, ferocious shrews sometimes have venomous saliva. They are ecologically useful because they eat carrion and harmful insects.

Skunk

Skunk

Type of animal science: Anatomy, classification, reproduction
Fields of study: Anatomy, zoology
Skunks, related to weasels, are known for the vile odor of their musk. They are helpful to farmers, eating animals that prey on agricultural products. Their fur is used for garments and some people keep them as pets.

Snail

Snail

Type of animal science: Anatomy, classification, reproduction
Fields of study: Anatomy, invertebrate biology, zoology
Snails are marine, freshwater, and land mollusks belonging to the class Gastropoda. Some are used for food; others are ecologically useful.

Snake

Snake

Type of animal science: Classification, evolution
Fields of study: Evolutionary science, herpetology, systematics (taxonomy)
Snakes are squamate reptiles with slender, elongate bodies that lack limbs. In spite (or because) of these features, snakes have successfully exploited many habitats and lifestyles.

Sparrows

Sparrows

Type of animal science: Classification
Fields of study: Anatomy, ornithology, systematics (taxonomy)
Sparrows are some of the most widespread and successful of all songbirds.

Spider

Spider

Type of animal science: Classification, ecology, evolution, geography
Fields of study: Ecology, evolutionary science, systematics (taxonomy)
Spiders are members of phylum Arthropoda, the dominant animals on earth in terms of both number of species and number of individuals. Of an estimated ten million species of arthropods, only 10 percent have been identified.Aclose examination of spiders helps to understand other arthropods.

Sponge

Sponge

Type of animal science: Classification, ecology, reproduction
Fields of study: Anatomy, zoology
Thousands of sponge species occur, most in the oceans. They are sexual hermaphrodites, and also reproduce asexually. Sponges are useful commercially.

Squirrel

Squirrel

Type of animal science: Classification, ecology, zoology
Fields of study:Ecology, systematics (taxonomy), wildlife ecology, zoology
Squirrels are mammals belonging to the family Sciuridae. Consisting of 272 species, this family represents only about 5 percent of mammal species. Nevertheless, squirrels are very familiar mammals to most people.

Starfish

Starfish

Type of animal science: Classification
Fields of study:Anatomy, invertebrate biology, zoology
Starfish are five orders (1,500 species) of marine invertebrate animals making up the echinoderm class Asteroidea. Their main foods include mollusks and coral.

Stegosaurus

Stegosaurus

Type of animal science: Classification, evolution
Fields of study:Anatomy, evolutionary science, paleontology, systematics (taxonomy)
Stegosaurs were a group of armored, herbivorous dinosaurs characterized by large plates set vertically along the back and spikes on the tail. The plates are thought to have acted as thermoregulatory devices.

Stork

Stork

Type of animal science: Classification
Fields of study:Anatomy, conservation biology, physiology, population biology, wildlife ecology
Storks are wetland birds that are physically striking in appearance and noted for their spectacular flight. They are found throughout the world, but their numbers have decreased dramatically due to habitat destruction by humans.

Swan

Swan

Type of animal science:Anatomy, classification, reproduction
Fields of study:Anatomy, ornithology, zoology
Swans are the largest, most beautiful waterfowl. Some species were hunted almost to extinction for their feathers, before legislation protected them.

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