In the Northern Hemisphere, as days shorten and temperatures fall and trees begin to shed leaves, some animals also show changes in sexual behaviour. Both outlets highlight that seasonal cues associated with autumn can affect mating patterns across species, with humans included in the discussion as part of how people’s behaviour may vary with seasonal conditions.
While the Phys.org piece frames the topic broadly—spanning animals’ shifts in sexual behaviour and explicitly noting autumn’s arrival—the Conversation article is shorter and leads with a specific idea: that some animals can change sex in autumn. Together, the sources present autumn as a seasonal trigger for reproductive and mating-related changes, though they differ in how much detail they provide and which examples they foreground.
