More than 35 years later, Bdellovibrio biology is undergoing a revival owing to the original, pioneering genetics work of Thomashow and colleagues (13), which has been followed up by genome sequencing and the development of new gene inactivation methods to study the function of these bacteria (32, 42, 60).
They also have five pairs of eyes. The Freshwater Leech is a parasite that feeds on the blood of fish, frogs, turtles, and mammals. It should not be confused with other leeches, most of which prey only on insects, snails, and small creatures.
Tribes in the frogs' native habitats used the frog poison on their arrows. The frogs' vivid colors warn potential predators they aren't safe to eat. As adults, poison dart frogs are carnivores, yet many are omnivores as tadpoles, says National Aquarium Curator Ken Howell on the organization's website. Native to Central and South American rainforests and to some Hawaiian islands, poison dart frogs hunt spiders and small insects such as termites and ants.