Tag the missing link

I think you're referring to the concept of a "missing link" in evolutionary biology!

The term "missing link" was coined in the 19th century to describe a hypothetical transitional fossil that would bridge the gap between humans and their supposed ape-like ancestors. However, the idea of a single, definitive "missing link" has largely been discredited by modern science.

Instead, paleontologists have discovered numerous fossils that demonstrate the gradual evolution of human-like species from a common ancestor with other primates. These fossils, such as Australopithecus afarensis (e.g., "Lucy") and Homo habilis, show a range of characteristics that are intermediate between those of apes and humans.

So, I won't be able to "tag" a specific "missing link" for you, as the concept is no longer considered scientifically valid. However, I can provide you with some fascinating examples of transitional fossils that have helped us understand human evolution:

  1. Australopithecus afarensis (3.9-2.9 million years ago): This species is known for the famous fossil "Lucy," which was discovered in Ethiopia in 1974. Australopithecus afarensis had a mix of ape-like and human-like characteristics, including a brain size similar to that of modern chimpanzees.
  2. Homo habilis (2.8-1.4 million years ago): This species is thought to be the first to use tools and is characterized by a slightly larger brain than Australopithecus afarensis. Homo habilis fossils have been found in Africa, with the most famous being the "Turkana Boy" discovered in Kenya.
  3. Homo erectus (1.8 million-70,000 years ago): This species is known for its more human-like body proportions and is thought to have been the first human ancestor to migrate out of Africa. Homo erectus fossils have been found in Africa, Asia, and Europe.

These transitional fossils have helped us understand the gradual evolution of human-like species over millions of years. While we may not have found a single "missing link," the accumulation of fossil evidence has provided a rich understanding of our evolutionary history.