Scientists can learn more about ancestors of different species and organisms by looking at fossil records and observing related species that are alive today.
Charles Darwin proposed the theory of evolution by natural selection, which suggests that humans and apes share a common ancestor. He did not specifically say that humans evolved from apes, but rather that both species descended from a common evolutionary ancestor.
No, humans and dogs have evolved from different ancestors, they are completely different species.
Yes, humans are classified as animals and have evolved from earlier primate ancestors over millions of years through the process of evolution. The theory of evolution explains how all species, including humans, have descended from common ancestors through natural selection and adaptation to their environments.
The principle of descent with modification states that living species have evolved from common ancestors over time through the mechanism of natural selection. This concept, proposed by Charles Darwin, explains how species adapt and diversify in response to changing environments. It is a fundamental idea in the theory of evolution.
There are three species of zebra and they evolved from proto-horses around 4 million ago.
A scientist would conclude that the ancestors of the given animal DID have legs, but, that over time, they evolved to become legless. Some examples of this kind of evolution include snakes, whales, dolphins, and the extinct, superficially fish-like icthyosaurs.
The earliest ancestors of humans are believed to be hominins, which were primitive ape-like creatures that lived millions of years ago. Some well-known hominin species include Australopithecus and Ardipithecus. These early hominins eventually evolved into the genus Homo, from which modern humans, Homo sapiens, descended.
Man has evolved from earlier hominins over a period of around 7 million years. The earliest known hominins in turn had the same ancestors as other primates, with which we share most of our DNA.Sahelanthropus tchadensis, dated to around 7-6 million years ago, may be the earliest hominin species, thus our oldest human-like ancestors. Various other hominin species have been identified, and the consensus of scientists is that our species, Homo sapiens, is directly descended from Homo erectus.
Evolution is best categorized as a scientific theory that explains how species change over time through a process of natural selection, genetic variation, and adaptation. It provides a framework for understanding the diversity of life on Earth and how species have evolved to their current forms.
Physiological similarities suggest the species evolved from the same ancestor.
Human ancestors refer to the various species that are believed to have evolved and eventually led to the modern human species, Homo sapiens. Some well-known human ancestors include Homo habilis, Homo erectus, Neanderthals, and Homo heidelbergensis. Studying human ancestors helps us understand the evolutionary history and development of the human species.