4 days ago · : a microorganism (such as a bacterium or virus) especially when causing illness or disease. Don't bug me with petty details. His eyes were bugged with horror.

Insects are the most diverse group of animals, with more than a million described species; they represent more than half of all animal species. The insect nervous system consists of a brain and a …

Take a closer look at the various types of bug that exist to discover a world of fascinating and diverse species.

6 days ago · insect, (class Insecta or Hexapoda), any member of the largest class of the phylum Arthropoda, which is itself the largest of the animal phyla. Insects have segmented bodies, jointed …

We collect photographs of bugs from the United States and Canada for identification and research. We summarize our findings in guide pages for each order, family, genus, and species. More than just a …

Nov 8, 2025 · Identify bugs easily with our detailed bug identification chart. Learn about common household, garden, crawling, and biting bugs - their colors, habits, and how to tell them apart.

Bug is used informally to refer to glitches or defects, especially when discussing electronics. Used in a sentence: The company didn’t release the new laptop until it had fixed all of the bugs.