Emperor penguins leave and stay for winter months.
Yes, I think I have some genetic traits which is similar to my grandparents.
Explanation:
Genes are blue print of our body. The 25% gene of Grandparent is similar to their grandchildren. This gene effects the look. It may affect the color of hair and color of eyes.
Each gene is responsible for different change of our body. Genes pass from one generation to other so it is passed through grandparents to parents and reaches to us.
According to Charles Darwin's Theory of Origin of Species, an organism either develops or losses an attribute according to its adaptation to survive in a competitive environment. This is same with humans or salamanders. The loss or the retention of limbs may indicate the survival purposes of the species.