HChen: Evidence of Evolution

Giraffa camelopardalis,38.929202,-77.049569 image source: http://nationalzoo.si.edu/Animals/AfricanSavanna/fact-giraffe.cfm

Geochelone nigra,38.929302,-77.049332 In both cases the signs of evolution favor the longer necks in each species. Both the giraffe and the Galapagos tortoises food is located at often higher places, making those with longer necks able to pass on their genes for longer and longer necks each generation.