According to Gray Wolf Conservation, wolves have four legs, along with foxes, coyotes and domestic dogs. HowStuffWorks.com also showcases various four-legged amphibians such as the tree frog, an amphibian with pads at the ends of their fingers to help them climb.Know More
According to Wikipedia.org, quadrupeds are animals that move on four legs. Other quadrupeds are cats, cattle and reptiles. Animals whose limbs have been modified because of evolution are known as tetrapods. Tetrapods have quadruped ancestors, but they cannot be classified as four-legged animals in the traditional sense.
PBS notes that humans were once quadrupeds as apes, but evolution has changed man into a bipedal creature. This was a process that took millions of years, and experts are not sure when the change took place. Apes such as gorillas are classified as quadrupeds since they rely on all four limbs to move around. The shape and structure of the pelvis defines humanity. Wikipedia mentions various cases of quadrupedalism in humans in Chile and Turkey. This is due to such factors as brain impairment and learning how to walk on all-fours as infants.
Crystal Graphics shows various quadrupeds such as deer, warthogs, bison, bears and wild boars. Zebras and rhinos also have four limbs. Other domestic animals such as horses and sheep have four limbs as well. Dinosaurs such as the brachiosaurus and the mamenchisaurus also had four limbs.Learn more about Zoology
Bears, deer and wolves are examples of omnivores, herbivores and carnivores respectively. Many animals that are considered carnivores, such as foxes, actually eat plants as well. Not only do red foxes eat fruit, but they sometimes eat carrion.Full Answer >
There are many species of animals on Earth that spend the majority of their lives alone, including species of reptiles, amphibians, mammals, fish, insects and arachnids. Solitude is common in the animal world, and it may be only during the mating season that individual members of a species interact with each other.Full Answer >
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.Full Answer >
Aside from the fact that an array of animal species makes life on earth more interesting, protecting endangered species has important health benefits to humans. In particular, animals fit into the well-established ecological food chain, and extinction causes a disruption to natural order, according to the National Wildlife Federation.Full Answer >