Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...

The eyes of a Cuban rock iguana, a gargoyle gecko, a blue-eyed black lemur, a southern ground hornbill, a red-eyed tree frog, a domestic goat, a western lowland gorilla, and a human This story ...

Human eyes are actually spheres. The part that we can see is only just the front. That coloured circle is called the iris and the black spot in the middle is the pupil. This is the part of the eye ...

Human eyes are actually spheres. The part that we can see is only just the front. That coloured circle is called the iris… and the black spot in the middle is the pupil. This is the part of the ...