Two Methods:Recognizing Hornet NestsIdentifying a Hornet By SightCommunity Q&A. Belonging to the genus Vespa, hornets are the largest and most aggressive members of the wasp family (Vespidae) with the largest species being as long as 2.2 inches (5.5 cm).
bloom (plural blooms) 1  A blossom; the flower of a plant; an expanded bud. Prescott the rich blooms of the tropics. 2  Flowers, collectively. ( 3 uncountable) The opening of flowers in general; the state of blossoming or of having the flowers open. The cherry trees are in bloom.
Algal Blooms - Definition, Glossary, Details - Oilgae An algal bloom or marine bloom or water bloom is a rapid increase in the population of algae in an aquatic system. Algal blooms may occur in freshwater as well as marine environments. Typically only one or a few phytoplankton species are involved and some blooms may be recognized by discoloration of the water resulting from the high density of pigmented cells.