Population ecology is the study of these and other questions about what factors affect population and how and why a population changes over time. Population ecology has its deepest historic roots, and its richest development, in the study of population growth, regulation, and dynamics, or demography.
When giraffes walk, they move both legs on one side of their body and then both legs on the other side; this is unique to giraffes. However, they run in a similar style to other mammals, swinging their rear legs and front legs in unison. They can reach 55 km/h (35 mph) at full speed but only in brief spurts.
Giraffes have other handicaps in the water. Horses tend to swim by trotting in the water, similar to the way they move on land. But giraffes move on land in an unusual way, moving their neck up and down in time with their limbs, and this important neck movement is not possible in the water.This means that giraffes are probably very poor swimmers.athematics has proven that giraffes can swim-even though they wouldn't be very good at it and nobody has ever seen them do it.