1 Digitalis medicines control irregular heart rhythms (called arrhythmias) by slowing the signals that start in the sinoatrial (SA) node. 2  This, in turn, reduces the number of signals that travel through the atrioventricular (AV node). 3  Fewer signals mean fewer arrhythmias.
June beetle (genus Phyllophaga), also called May beetle or June bug, genus of nearly 300 species of beetles belonging to the widely distributed plant-eating subfamily Melolonthinae (family Scarabaeidae, order Coleoptera).
Pill bugs have a hard exoskeleton that protects them from predators and desiccation. Jupiterimages/Photos.com/Getty Images. Pill bugs -- also known as roly-polies or wood lice -- are terrestrial crustaceans known to scientists as isopods.Scientists have documented the existence of over 10,000 species, living on the ocean floor, high in the mountaintops and in every habitat between the two.ill bugs have a hard exoskeleton that protects them from predators and desiccation. Jupiterimages/Photos.com/Getty Images. Pill bugs -- also known as roly-polies or wood lice -- are terrestrial crustaceans known to scientists as isopods.