Bird Beak Lab Conclusion

In this lab we asked the question of if Natural Selection occurs in a population, how do changes in selective pressures affect the evolution of species. We found that birds with the better type of beaks like the tweezers get more food and evolute faster than other, causing them to be the winner. In feeding round of part 1, there were 41% of chicks from the Tweezer-beak bird, 38% of chicks from the Spoon-beak bird, and 21% of chicks from the Paper Clip-beak bird; this supports the hypothesis that if there are winners and losers, the tweezers would win and the scissor and the paper clip lose. In the feeding round of part 2, the paper clip beak had 16% of the chicks, the tweezer picked 31% of chicks, and the spoon picked 53% of the chicks; this however does not supports the hypothesis that the tweezer-beak bird is the winner since in round 2, the spoon-beak bird was the winner. Based on the 2 rounds, we found that the whole population of chicks are the tweezer-beak bird and the spoon-beak bird which made them the winners of the competition. This comes from what Natural Selection is, which is selecting pop. out of a group that cannot survive, and the Change that it's all natural vodcast, that included Darwin's observations and conclusions that we used in the lab. By knowing what Darwin's observations were, we related it when we had a competition among who can get the most food using different types of beaks. The data in the Bird beak lab supported that there are winners and losers among a population, by having some types of bird beaks having more chicks than others, because of eating more food than others.

Some errors we made in the lab included that not everybody in our table group might not be trying as much to get as much food in round 1 and round 2 of the Bird-Beak lab competition. If we did this lab in the afternoon, even though we might not have the best bird beak to eat food,  we would have more accurate results since all these birds are competing really hard for food with a lot of energy, and in the morning not everybody is having that energy to get the food in the lab. Another error we might have faced was in the second round of the Bird Beak competition, we did not have toothpicks to feed on due to massive drought. So now the competition of resources will be more tighter since there are less resources.

In conclusion, the Bird beak lab was done to demonstrate Darwin's observations & conclusions in effect. There were different types of bird beaks that had to fight for survival in order to raise their offspring. From this lab, I learned the concept of natural selection that there are going to be some birds or any other living organisms that become extinct, and some of them survive;those who cannot survive are moved out naturally out of the competition like in the 2nd round of the Bird beak lab competition where we had some birds drop out or extinct because they did not get enough food in order to raise their offspring, or survive. Based on my Bird beak lab experience, I can apply it to the school life today where we all eventually want to get in the great universities like Stanford, Berkley, UCLA, Harvard, etc. But eventually there is limited space for each of the universities so some will get accepted and others will be dropped or rejected from the university like the bird beaks in the experiment when they could not get enough food, they go extinct.