The use of chemical as synonymous with toxic, hazardous or poison in some contexts, particularly popular media, is common. 4 This gives rise to a definition of chemical as something synthetic and toxic, and leads to a series of misconceptions such as the possibility of leading a chemical-free life.
Breeding of different branches of the equine family, which does not occur in the wild, generally results in infertile offspring. The combination of sire and dam also affects the offspring phenotype. A zorse is the offspring of a zebra stallion and a horse mare. This cross is also called a zebrula, zebrule, or zebra mule. The rarer reverse pairing is sometimes called a horbra, hebra, zebrinny or zebret. Like most other animal hybrids, the zorse is sterile.
Lufenuron, the other active ingredient, Sentinel Flavor Tabs, is an insect development inhibitor which breaks the flea life cycle by inhibiting egg development. Lufenuronâs mode of action is interference with chitin synthesis, polymerization and deposition. Lufenuron has no effect on the adult flea.