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Showing posts from February, 2018
Homologous trait Octopi and squid tentacles Divergent evolution has the squid with two extra tentacles used for capturing prey Cephelapod Octopi and jellyfish have homologous traits. Octopi are cepholopods that have, on average, 8 tentacles used to grab their prey and drag it toward themselves. Jellyfish are slightly different in the way that they do not have a skeletal form and have an umbra shaped bell at the top of their bodies. Both have tentacles but the octopus has an average of 8 while the jellyfish can have millions of tentacles depending on what kind. Each are used for food capture, but the Jellyfish uses these tentacles to inject toxins in its prey while the octopus normally uses it to crush its prey for consumption. These are different for the different ways of mobility as well as the different kinds of prey that each feast upon. While Octopi can sometimes chase their prey, which may be fast or even bigger than them, Jellyfish have slower mobility rates and need...

Darwinning or Russeling Feathers

I feel that Alfred Russel Wallace was the most influential upon Darwin’s theory of evolution to strengthen his theory. With Wallace’s trip to the East Indies observing wildlife, he was able to, after great time, understand that adaptation is key for a species to survive.   Theories are proven by multiple examples from multiple locations and if they can not be redone in different areas, it either has the theory, or originally hypothesis, invalid, or thus needs more testing. Wallace was the individual who gave the theory backing with his research of the Dutch East Indies animals, he backed with evidence, Charles Darwin’s hypothesis that was made in the Western Hemisphere of species adapting to their environments.   His studies not only showed that species evolve from other pre-existing species in their development, but also show a niche for a specific part of the environment to thrive in, thus helping with the theories or ideas that Populations evolve, annd not j...

Stranded? What to do?

If I were stranded on an island and only had two items that I could bring I would bring 5 yards of rope and a buck knife. The buck knife for the purpose of gutting animals or carving other things to use and the rope for tying things like tree limbs together for purposes of shelter.