Both dolphins and sharks swim after prey in the ocean. We know that dolphins and sharks are not closely related, and they didn’t inherit their similar body shapes from a common ancestor. Their streamlined bodies, dorsal fins and flippers are the result of convergent evolution.

Answer: Many species have similar traits because they are descendants of a single common ancestor. The similarity between convergent evolution-affected species is called homoplasy, which literally means ‘from the same mold or form.

In evolutionary biology, convergent evolution is the process whereby organisms not closely related, independently evolve similar traits as a result of having to adapt to similar environments or ecological niches. Whale, seal and sharks shows convergent evolution, as they have analogous structures used for swimming.

Convergent evolution is when different organisms independently evolve similar traits. For example, sharks and dolphins look relatively similar despite being entirely unrelated. Another lineage stayed put in the ocean, undergoing tweaks to become the modern shark.

An example of convergent evolution is the similar nature of the flight/wings of insects, birds, pterosaurs, and bats. All four serve the same function and are similar in structure, but each evolved independently. Some aspects of the lens of eyes also evolved independently in various animals.

development in evolution Convergence is often associated with similarity of function, as in the evolution of wings in birds, bats, and flies. The shark (a fish) and the dolphin (a mammal) are much alike in external morphology; their similarities are due to convergence, since they have evolved independently…

Although fish and whales come from different lineages they share many morphological characteristics as well as some behaviors. When organisms are forced to face the same abiotic and biotic pressures, some organisms evolve to resemble others living in the same environment. This concept is known as convergent evolution.

Large sharks prey on dolphins, they particularly target very young calves and sick adult dolphins as these are the weakest and most vulnerable individuals. Orcas will even attack and kill great white sharks just to eat their livers which are a high energy food source.

Convergent evolution: Convergent evolution occurs when two organisms that lack a recent common ancestor end up more and more alike as they adapt to a similar ecological niche. The organisms have convergent phenotypes, and their similar structural forms are called analogous structures (such as bird wings and bat wings).

Explanation: Convergent evolution is the phenomenon by which two separate species evolve a shared trait. A population diverging into two separate species while residing in the same area describes the phenomenon of sympatric speciation. A species regaining a trait is an example of evolutionary reversal.

Convergent evolution creates analogous structures that have similar form or function but were not present in the last common ancestor of those groups. The cladistic term for the same phenomenon is homoplasy. The opposite of convergence is divergent evolution, where related species evolve different traits.

Convergent evolution is this phenomenon where similar characters evolve independently in multiple lineages. Cormorants, penguins, puffins, and gannets, each with minimal relatedness to the others, have evolved to have a “pygostyle” tail, which is straight and elongated.

Coevolution, the process of reciprocal evolutionary change that occurs between pairs of species or among groups of species as they interact with one another. The activity of each species that participates in the interaction applies selection pressure on the others.

transitive verb. : to make ineffective or restrain or neutralize the usually ill effects of by means of an opposite force, action, or influence a drug used to counteract fatigue.

1. climate change – a change in the world’s climate. global climate change.

Coevolution Examples

• Predator-Prey Coevolution. The predator-prey relationship is one of the most common examples of coevolution.
• Herbivores and plants.
• Acacia ants and Acacias.
• Flowering Plants and Pollinators.

The most dramatic examples of avian coevolution are probably those involving brood parasites, such as cuckoos and cowbirds, and their hosts. The parasites have often evolved eggs that closely mimic those of the host, and young with characteristics that encourage the hosts to feed them.

Coevolution happens when the evolution of one species depends on the evolution of another species. The species enter something like an evolutionary race. One common example is the relationship between some species of birds and butterflies.

Evidence for evolution: anatomy, molecular biology, biogeography, fossils, & direct observation.

Experiments suggest that organic molecules could have been synthesized in the atmosphere of early Earth and rained down into the oceans. RNA and DNA molecules — the genetic material for all life — are just long chains of simple nucleotides. Replicating molecules evolved and began to undergo natural selection.