Jealousy as Predicted by Allocation and Reception of Resources in an Economic Game.

Evidence is abundant that evolution by selection has produced sex differences in the design of adaptations to solve the problems surrounding reproduction. A prime example is the design of human jealousy, which research suggests is triggered by distinct evoking acts that are specific challenges for women and men in their exclusive reproductive bond. It follows that jealousy would be directed toward driving away interlopers who could potentially threaten the bond with the romantic partner or increase mate retention efforts in response to sex-specific threats.

Pan American climate resilient health systems: a training course for health professionals.

Objectives: To describe the development, implementation, and results of a training course designed to equip health professionals from the Pan American Health Organization region with the knowledge and tools needed to adapt health systems to current climate realities.

Methods: The course was a 9-week live-virtual course in March-April 2023, which was delivered through Zoom and offered in English, Spanish, and French. All lectures were delivered by local and regional climate and health experts.

Archaeological evidence of resource utilisation of walrus, , over the past two millennia: A systematic review protocol.

The walrus, is an iconic pinniped and predominant molluscivore that is well adapted to Arctic and subarctic environments. Its circumpolar distribution, large body size and ivory tusks facilitated its vital role as food, raw material (for tools and art), income, and cultural influence on many Arctic Indigenous communities for millennia. Intensification of hunting (often due to the arrival of Europeans, especially between the 16 and 19 centuries) to obtain ivory, hide, blubber and meat, resulted in diminished, sometimes extirpated, walrus populations.