Covering a flat surface with some pattern of geometric shapes with no overlaps or gaps is called tiling. Tiling shows up in many places, from the tiles...

Big doesn’t always mean strong. Most of the time, strength comes from what something is made of. The proteins forming spider silk make that silk...

The sweet melody of songbirds fills the air as the forest wakes up. But there is another familiar voice that joins in the morning songs: woodpecker....