Animals
Animals · sanalda.comWhat is the animal kingdom?
The animal kingdom comprises multicellular eukaryotes that generally obtain food from other organisms or organic matter and, in many cases, can move.
Animals · sanalda.comWhat are vertebrates?
Vertebrates are animals with a backbone and a prominent internal skeleton during development, including fishes, amphibians, reptiles, birds and mammals.
Animals · sanalda.comWhat are invertebrates?
Invertebrates are animals without backbones; the broad term covers many evolutionary lineages rather than a single close-knit group.
Animals · sanalda.comWhat are mammals?
Mammals are vertebrates that nourish young with milk and have hair at some point in life.
Animals · sanalda.comWhat are birds?
Birds are vertebrates recognised by feathers, beaks and eggs; they are part of the surviving dinosaur lineage.
Animals · sanalda.comWhat are reptiles?
In everyday usage, reptiles include turtles, snakes, lizards and crocodilians, mostly vertebrates with scaly skin.
Animals · sanalda.comWhat are amphibians?
Amphibians are vertebrates including frogs, salamanders and limbless caecilians.
Animals · sanalda.comWhat are fish?
Fish generally describes finned vertebrates living in water; bony and cartilaginous fishes represent different evolutionary groups.
Animals · sanalda.comWhat are insects?
Insects are arthropods with six legs and body regions called head, thorax and abdomen.
Animals · sanalda.comWhat are arachnids?
Arachnids are arthropods including spiders, scorpions, ticks and mites.
Animals · sanalda.comWhat are animal pollinators?
Animal pollinators move pollen among flowers and contribute to the reproduction of many flowering plants.
Animals · sanalda.comWhat is animal migration?
Animal migration is regular movement among areas for breeding, feeding or suitable conditions, often tied to seasons or life cycles.
Animals · sanalda.comWhat are hibernation and torpor in animals?
Hibernation and torpor describe states in which some animals reduce metabolism and body temperature to save energy.
Animals · sanalda.comWhat is camouflage in animals?
Camouflage refers to adaptations in appearance or behaviour that make an animal harder to detect in its surroundings.
Animals · sanalda.comWhat are food chains and food webs?
A food chain shows energy transfer through feeding in a simple sequence; a food web connects many such chains in one environment.
Animals · sanalda.comWhat are threatened animals?
Threatened animals are species assessed as facing elevated risk of extinction in the wild; risk levels differ among species.
Animals · sanalda.comWhat are animal habitats?
A habitat is the environment in which a species can meet its needs for food, shelter, reproduction and survival.
Animals · sanalda.comWhat is Facts about lions?
The lion, Panthera leo, is a large cat found mainly in Africa today, with a small population in India.
Animals · sanalda.comWhat is Facts about elephants?
Elephants are trunk-bearing mammals; living African and Asian elephant species differ in range and ecology.
Animals · sanalda.comWhat is Facts about dolphins?
Dolphins are marine mammals related to whales; the name covers a group of species with differing traits rather than one species.
Animals · sanalda.comWhat is Facts about whales?
Whales are air-breathing marine mammals that nurse young; they include diverse toothed and baleen lineages.
Animals · sanalda.comWhat is Facts about sea turtles?
Sea turtles are air-breathing reptiles spending most of their lives at sea; females come ashore to lay eggs.
Animals · sanalda.comWhat is Facts about penguins?
Penguins are flightless birds using their wings for swimming; not all species live in Antarctica.
Animals · sanalda.comWhat is Facts about wolves?
The grey wolf, Canis lupus, is a social canid that occupies varied habitats and prey environments across a wide range.
Animals · sanalda.comWhat is Facts about bees?
Bees are diverse insects closely associated with flowering plants; the honey bee is only one member of the group.