Topic
Insects
2 articles
Biology
Why does a mosquito bite itch?
The bite itself is so gentle you sleep through it. Twenty minutes later there is a hot pink lump that will not leave you alone for two days. Almost none of that damage was done by the mosquito.
Mathematics
Why is every cell in a honeycomb a hexagon?
Bees buy wax with honey, so a comb is really a problem about cost. Thousands of builders working in the dark all reach the same answer, and mathematicians took two thousand years to prove they were right.