This group includes various species of insects, arachnids, and nematode worms. For a long time, the group’s early history was a blank page until now. A team of researchers has identified the ...

bacterial infections (e.g., Clostridium), viral infections (e.g., adenovirus), and parasites (e.g., nematodes). Birds swallow small pebbles (also known as ... These birds also have high concentrations ...