Scientist believe the first giraffes on earth had shorter legs and neck then today?

That's right! Scientists believe that the first giraffes on Earth, which appeared about 25 million years ago, had shorter legs and necks than today's giraffes. Over time, through a process called evolutionary adaptation, giraffes developed longer legs and necks to better reach leaves and buds high up in trees, giving them an advantage in terms of food accessibility and survival.