Question

in what other circumstances would the giraffes have a change in neck length? (other than short necks dying because of environment change)

Answer 1

Giraffes have a change in neck length during their growth and development. Male giraffes' necks become longer as they age because of sexual selection, which means that females prefer males with longer necks. Additionally, giraffes' necks may also change in length in response to environmental factors such as food availability and competition for resources.