How long is it before seahorse offspring reproduce?
Natural selection, the method by which evolution works, is driven by the fact that organisms that die before reproducing do not pass on their genes to their offspring and because of this only those that can survive long enough to reproduce will do so and thus populations tend to be filled with those who survive the best in their current environment. The few bugs that don't die from pesticide reproduce and have (mostly) pesticide-resistant offspring…
Giraffes with very long necks could feed in the trees while those with short necks did not survive all giraffes have long necks what is this an example of?
Asexual reproduction generates offspring that are genetically identical to a single parent. Asexual reproduction allows the organisms to reproduce very quickly. Asexual reproducers do not have to carry their offspring for a long amount of time and produce more than one at a time. Asexual reproducers do not have to spend time looking for a mate.
The term "fittest" is not actually "fittest to survive" but rather "fittest to survive long enough to reproduce". If one animal lives 20 years, but has 15 offspring, and another lives on 5 years, but manages to have 50 offspring, the latter example would be considered fore "fit" by the standards of Darwin's statement.
If a mutation happens, it will be helpful, harmful or neutral. Whether they are passed on to offspring depends on several things. Obviously, whether the organism gets a chance to reproduce. Whether the organism manages to survive long enough to reproduce, which it is unlikely to do if the mutation is harmful. Whether the gametes which are successful in the process of fertilization happen to contain that gene.
Yes, coyotes and wolves seem to interbreed in the wild even. In the northeast United States wolves are quite rare but coyotes are common. The few wolves seem to be breeding with coyotes and producing animals that are bigger than the average coyote but smaller than an average wolf. For more information, click on this link.