No one is born with a completely symmetrical face, but the difference can look more obvious because of uneven eyes. Those who have two different eye shapes understand the struggle of applying ...

Through natural selection, different types of eyes have emerged in evolutionary history -- and the human eye isn't even the best one, from some standpoints. Because blood vessels run across the ...

Read the following text, and answer questions 1-9 below: [1] A video showing a seven-year-old girl in eastern China with different coloured eyes being welcomed and embraced by her classmates at ...