sentence: Biologists think that the blood going through their ears helps African elephants to cool off.
sentences_before: African elephants are larger and have bigger ears. These big ears have many 'veins', which carry blood throughout the body.
sentences_after: The weather is hotter in Africa than in Asia, so it is hard for elephants to stay cool. Female African elephants have tusks, but female Asian elephants do not. African elephants have a low place in their back. Indian elephants eat mainly grass.
concept_name: biologist
headings: Elephant Physical description Teeth
categories: Animals used for transport