He is majoring in zoology at university.

She has zoophobia, and runs away as soon as she sees dogs or cats.

Animal experiments are necessary for the advancement of science, but there are also ethical issues.

He is learning about the handling of experimental animals.

We went to the zoo with our family on the weekend.

Vertebrates are organisms whose part of the skeleton is composed of a spine.

Wild animals are part of nature, and we should protect them.

He is suffering from heart disease.

He is an intersex person, possessing both male and female gender characteristics.

This information was transmitted all over the world through the internet.