Definitions for "Vernal Pool"
spring pool.
seasonally flooded depression found on ancient soils with an impermeable layer such as a hardpan, claypan, or volcanic basalt. This impermeable layer allows the pool to retain water much longer than surrounding area. The ecosystem associated with vernal pools consists of specialized plants and animals.
a body of water that tends to dry up in the summer, doesn't have any fish, and supports certain species of wildlife that can't live or breed any place else
Keywords:  rotifers, great, place, see
a great place to see Rotifers
Keywords:  rare, environment, special
a very rare and special environment
Keywords:  temporary, water, body
a temporary body of water