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The article examines research published by scientist Panayiotis Pafilis and team in the periodical "Ethology" on acts of cannibalism among lizards on Diavates Island in the Aegean Sea. It is noted that the lack of predators and abundance of food on the island result in the species growing to a large size. Topics include the use of cannibalism by lizards as a form of population control, why lizards on Diavates are cannibalistic and those on nearby Skyros island are not, and why older lizards attack the young.

The article focuses on research into coin spiders, stating that male coin spiders chew off their own genitals after mating with a female, and mentions that Matja Kuntner and colleagues found eunuch spiders were more aggressive and stayed closer to females than competitors who hadn't mated.

The article discusses research by Sirkka Sutinen and colleagues studying the effects of global warming on Norwegian spruces in eastern Finland that found a warming climate limited the trees' growth and had a negative impact on tree health.