Africanized honeybees are now found in 13 states and are slowly spreading north, attacking people, livestock and pets along ...

Animal Aid hosted a roundtable in Westminster, to meet with MPs and other invited guests to discuss the ending the LD50 and other animal tests.

Animal Aid and our supporters have been at the forefront of campaigning to end the use of animals in research. Progress has ...

Scientists say the bees' temperament is to ward off predators. But unsuspecting humans will find them to be aggressive, ...

The Fertilizer and Pesticide Authority (FPA) in Central Visayas is intensifying its efforts for stricter regulation of fertilizers and ...

Before approval, all products must undergo rigorous testing, including laboratory analyses to verify their nutrient composition and toxicological assessments such as lethal dose (LD50) and lethal ...

In toxicology, researchers speak of the LD50, the lethal dose required to kill 50% of those exposed to it, Rangel said. For honey bee stings, it's calculated at about nine stings per pound of weight.

In toxicology, the median lethal dose, LD50 (abbreviation for "lethal dose, 50%"), LC50 (lethal concentration, 50%) is a measure of the lethal dose of a toxin, radiation, or pathogen. The value of ...

Africanized honey bees, commonly (and ominously) known as “killer bees,” have slowly spread into 13 U.S. states, leaving ...

Toxicology testing has a rather controversial history with regard to animal welfare, partially because many people think of the LD 50 (lethal dose 50%) study, in which a sufficient quantity of the ...