Ecology - A branch of science that deals with the relation of organisms to one another and their physical environment.⏎
El Niño-Southern Oscillation Cycle (ENSO) - A combination of two events, El Niño and La Niña, which are periodic disruptions in the ocean’s temperatures. As a result, the temperatures are warmer or cooler than usual, which has an impact on weather patterns worldwide. ⏎
Gastrointestinal Tract - The structure in the body, beginning with the mouth and extending to the anus, through which food is ingested, broken down, and absorbed to provide the body with nutrients, and waste products are excreted.⏎
Contagion - A general term for any disease-causing infectious agent spread by direct or indirect contact.⏎
Encephalitis - Inflammation of the brain, often caused by a virus.⏎