species

==A group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding, the species is the principal natural taxonomic unit, ranking below a genus and denoted by a Latin binomial ==
 * Species- **

example: dogs,horses, pandas






this relates to ecology because:

the species are what make up ecolgy there the ones who interact with each other they're the ones that are either carnivores, herbivores, decomposers etc..