Animals have special adaptations in their eyes that give them better night vision than humans. However, there are differences between how different species see in the dark. Some animals have even more adept night vision than others.
A:More than 98 percent of all animal species have no bony vertebrae or skeletons and are collectively classified as invertebrates. Jellyfish, octopuses, worms, snails, crabs and lobsters, insects, squid and sea stars are some common examples. The invertebrate designation has no bearing on the biological traits or characteristics of the species. More than 30 animal groups are included in the invertebrate classification.
A:The peregrine falcon, or Falco peregrinus, is the fastest bird and the fastest member of the animal kingdom. When swooping or diving, it reaches speeds of up to 200 miles per hour. It is native to North America and historically known as the duck hawk.
A:The word "carnivore" can refer to one of two things: a predatory animal or mammals that are classified as members of the order Carnivora. Most members of Carnivora are flesh-eating, so listing these animals as examples would cover both definitions.
A:Because of its unique climate, size and ecosystems, Australia is home to an enormous variety of unique and diverse types of animals. These include many unusual mammals, fish, birds, reptiles and other animals that are only found in the wild in Australia. The country is also famous for its many marsupials, such as koalas, a large array of wallaby species, and kangaroos with varying physical characteristics.
A:About 150 different types of animals have multiple compartments in their stomachs, including cows, sheep, camels, yaks, deer and giraffes. Animals with multiple stomach compartments are known as ruminants, named after the part of the stomach called the rumen.
A:The number of segments a crustacean has varies greatly depending on the species, but it is possible for all the segments of a crustacean to have appendages. The type of appendage differs according to whether it is on the region of the head, thorax or abdomen.
A:The number of fish in the world is always changing due to reproduction, predation, human consumption and environmental factors, among other reasons. Thus, it cannot be known exactly how many fish there are in all.
A:Lions are considered to be the king of the jungle due to their size, strength and numbers and because they don't fear any other animal. This can be somewhat misleading since lions don't actually live in jungles.
A:There are two contenders for the world's smallest mammal, depending on whether one is going by length or weight. The world's lightest mammal is the Etruscan shrew, while the shortest is Kitti's hog-nosed bat.
A:According to Reference.com, there is no difference between a pollywog and a tadpole. Both words describe the larval stage of the toad or frog. These amphibians for the most part live in the water during this stage of their lives.
A:Several types of animals live in the Earth's cold polar regions, including polar bears, Arctic foxes, whales, Arctic wolves, brown bears, Pacific salmon, caribou, walruses, auks, penguins, Arctic owls, lemmings, Arctic hares, narwhals and killer whales. Due to a lack of vegetation, most animals in the polar regions are carnivores. Penguins feed on fish in cold Antarctic waters. Meanwhile, leopard seals and killer whales feed on penguins.
A:Insects belong to the largest phylum of the animal kingdom and are called arthropods. According to the Encyclopaedia Britannica, insects are members of the Arthropoda phylum and make up 84 percent of all the known animals on Earth.
A:A painted turtle can live for around 20 years in the wild, or it can live for 30 years or more in captivity. Turtles are very well known for having long lifespans, and painted turtles are no exception.
A:Animals such as dogs, rats, squirrels, bears, pigs, skunks, rhinoceroses, badgers, raccoons and foxes are all omnivorous animals. Apes, humans and monkeys are omnivorous too. Most animals that live in close proximity with humans are omnivores.
A:Freshwater fish live in rivers and lakes with very low salt levels, and saltwater fish live in seas and oceans that contain high levels of salt. The level of salinity in a fish's environment determines the type of fish it is. Common freshwater fish include trout, bass, salmon, and catfish. Most tropical, exotic and aquarium fish are freshwater fish.
A:During the winter months, ants go into a hibernation-like state and do not emerge outside until the spring. They stay underground throughout the winter where it is warmer and they do not have to try to survive in the outside temperatures.