https://www.youtube.com/watch?v=mq9A9OctSts
The most common argument against evolution is that there is no proof because you can't see it happening. Evolution is a process that spans over many generations of a species and takes a very long time but it doesn't mean you can't see it happening. In the last 25 years, the population of African and Asian elephants has decreased by as much as 50% due to poachers killing them for their tusks. The elephants have naturally selected to be tuskless. The African and Asian populations use to have as little as 5% tuskless elephants but now they are as high as 30%. The tuskless elephants are less likely to be killed by poachers and are thus more likely to pass on that gene. This is relevant to the material we are learning in class about the process of natural selection and evolution.
Are there other examples of species that have lost key unique characteristics, and if this continues, will more and more of the animal population look similar, or perhaps share more features humans find unappealing?
ReplyDeleteYes this is happening in other species that humans poaching are haveing the same problem
DeleteAs these animals become tusk-less due to artificial selection, how will they fare against natural selection with their loss of a unique adaptation?
ReplyDeleteI think the threat of being killed by poacher daminates the threat of being killed becuae they can't defend themselves
ReplyDelete