Sweden’s ongoing heatwave is demonstrably affecting both wild and domesticated animals. Reports indicate altered animal behavior, including lethargy in bees, cessation of birdsong, and increased aggression among fish likely due to oxygen depletion in warmer waters. Pet owners are observing irritability in dogs, potentially linked to the high temperatures. Experts suggest animals are experiencing heat stress and are altering routines to conserve energy. The Swedish Veterinary Institute advises pet owners to provide ample water and shade for their animals, and to limit strenuous activity during peak heat. Wildlife organizations are monitoring vulnerable species for signs of distress, anticipating potential impacts on breeding and survival rates.