species. A biological species is a group of organisms that can reproduce with one another in nature and produce fertile offspring.The definition of a species is a group of animals, plants or other living things that all share common characteristics and that are all classified as alike in some manner. An example of a species is all human beings.Birds are attacked and eaten by other birds, including falcons, owls and eagles. Different kinds of serpents and other reptiles kill adult and baby birds alike. Four-legged predators such as bobcats and weasels are bird-eaters.
But among dogs, which are well known for their hybrid (or mongrel) varieties, different breeds can mate and have viable offspring, so they are all found under the umbrella of a single species, Canis familiaris. Dogs are highly unusual in their variation, from the Chihuahua to the Great DaneThe next smallest unit of bird classification is species. In some cases the species is further divided into subspecies, this often occurs because birds of the same species living in a different geographical area may differ slightly. There are 9,702 specie
Are all species related? Yes. Just as the tree of life illustrates, all organisms, both living and extinct, are related. Every branch of the tree represents a species, and every fork separating one species from another represents the common ancestor shared by these species.s of birds.same species or not? ... For years, wolves and dogs were considered separate species: canis familiaris and canis lupus. However, more recently, scientists generally agree they are both a sub-species of canis lupus. Unlike dogs and foxes, wolves and dogs can reproduce, creating the controversial wolf-dog.