Behavioural patterns and dangers: a mixed-methods exploration of simultaneous polysubstance use and intervention strategies among Swiss adolescents.

Background: Recent trends in Switzerland indicate a concerning rise in simultaneous polysubstance use among adolescents, a practice marked by the concurrent or sequential consumption of multiple psychoactive substances, notably alcohol and cannabis, alongside prescription medications (e.g. benzodiazepines) and illicit drugs, resulting in dozens of fatal outcomes.

Chimpanzee-red colobus encounter rates show a red colobus population decline associated with predation by chimpanzees at Ngogo.

Chimpanzees (Pan troglodytes) hunt various primates, but concentrate on red colobus monkeys (Piliocolobus spp.) wherever the two species are sympatric. The extraordinarily large Ngogo chimpanzee community in Kibale National Park, Uganda, preys heavily on the local population of red colobus (P.

Energetic costs of territorial boundary patrols by wild chimpanzees.

Chimpanzees are well known for their territorial behavior. Males who belong to the same community routinely patrol their territories, occasionally making deep incursions into those of their neighbors. Male chimpanzees may obtain several fitness benefits by participating in territorial boundary patrols, but patrolling is also likely to involve fitness costs.

[Complementary medicine use in oncology patients].

Through an anonymized questionnaire we assessed the prevalence of complementary and alternative medicine (CAM) use in a series of cancer patients treated at the Geneva University Hospitals. 152 among the 300 sollicitated patients responded and 39 (26.5%) recognized to use CAM, particularly young, and moderate to highly educated patients.

Lethal intergroup aggression by chimpanzees in Kibale National Park, Uganda.

Chimpanzees (Pan troglodytes) have hostile intergroup relations throughout most or all of their geographic range. Hostilities include aggressive encounters between members of neighboring communities during foraging and during patrols in which members of one community search for neighbors near territory boundaries. Attacks on neighbors involve coalitions of adult males, and are sometimes fatal.