HOMOLOGY TRAITS
1) . a. Lions and Tigers are both from the family of Big Cats, being meat eaters, they are classified as Carnivore landing them at the top of the food chain. With no actually predation living in wild habitats because they are the ones doing the hunting.
b. The Homologous traits are the 4 limbs and a bony skeleton, the differences are that the Lion is actually smaller than the Tiger. Lions having sharper teeth weighing at an average male of 300-430lbs, whereas the tiger having a wider mouth but stronger teeth weighing at 488-510lb. The Lions Mane is in either color of Black or Tan and the Tiger is strictly stripes, (Interestingly they form hybrids called Ligers)
c. The earliest cats evolved 200 million years ago from Reptiles, the Miacids whiche lived 33-65 Million years ago gave birth to the family of Cats [Interestingly, The Saber Tooth Tigers being about the same size as the Lion, but with 2 large canine teeth that extends outside their mouth, was a Prehistoric Machairodontinae (subfamily of Felidae, Family of Cats) which lived 10,000 years ago and became extinct before the Tiger and Lions, they are not descendants of Saber-tooth.]
ANALOGY TRAITS
2). a. Cats living in common areas as Mice which are in predation of the cat, to their habitat in living around them can be dangerous for the mouse but they tend to be mammals right along with cats.
b. Their analogous traits are they are mammals with 4 limbs, flexible and a tail, But Cats coming in a much larger size are carnivores, having some of the same characteristics as the big cats only they hunt smaller prey. Cats have large eye sockets, and sharp teeth used for killing prey and tearing meat. The Cats claws are shielded in there paws to keep them sharp and from dulling on the ground, also allowing them to pounce and climb. The mouse, with a hairless tail, in their paws is hairless as well with claws are extended outward. A mouse is a herbivore having sharp teeth to nibble at wood, particularly prefer eating seeds from plants and any kind of fruits.
c. Hmm. these two species of Felidae and Mus Musculus have hair and they have 4 limbs containing a tail, the Mus Musculus (mouse) survived after the Era of Dinosaurs because they eat seeds,so their might have been a special event.
Homologous trait first... Good description on the species. The trait itself is confusing as the assignment only asked for one. Four limbs is not really specific enough for this assignment. The difference in the teeth of the two groups might be closer to what the assignment is asking for here. Homologs are generally traits that are very different from each other but come from a common ancestor, such as the wings of penguins and eagles. Also, you didn't have to go too far back for a common ancestor of these two, only a few million years ago.
ReplyDeleteAnalogous traits: Both of these species are mammal and so both inherited their body shape (four limbs and tail) from a common ancestor. That means these traits are technically homologous, though again the four limbs are too general for this. The tails would have been a good trait to use for your homologous traits.
Please make sure you take some time to review this concept. Also read other student blogs to see examples of analogous and homologous traits.
Thank you Professor Rodriguez, I actually was confused about the Analogous Trait, basing on the example you gave I thought there had to be a common traits but not exactly the same structure, I understand that i could have compared a Mammal to a Amphibian. At first I was thinking about a frog and cat that would have been more interesting now I understand assignment Thank you once again, I'll consider the advice.
DeleteThank you for the response, Raji.
DeleteI liked the part in your homologous comparison about cats evolving from reptiles. I think this is hints at something that some people still dont realize. We all have common ancestors in some ways, but i think alot of people still dont understand this fully and that includes myself. I have learned alot of things from this class and i think anthropology and evolution need to be a bigger part of our education.
ReplyDeleteFor the analogous trait, as I was reading I can say that I agree with professor Rodriguez that the two animals are in fact mammals so that would indeed an example to use for a homologous trait. Could be the tail or maybe even the ears.
ReplyDeleteYes Garik I was kind of lost on that part I realized I could have been more specific with my Analogous I also agree with Professor Rodriguez.
DeleteFrom: Mark Glen
ReplyDeleteTo: Raji Burns
To me, the comparison between the big cats is an interesting one. It's fascinating to see a Liger, though they don't live very long.
For your analogous traits, cat and mouse are a funny comparison being that one is the prey and one is the predator. Both being mammals, they had to have come from a common ancestor and have the same adaptations.
sup
ReplyDelete