Fleas, ticks and worms each move through a distinct lifecycle, and only part of that cycle ever lives on the dog. This scene shows a UK garden scene with a dog, a floating lifecycle ring for the selected parasite, and small markers scattered in the "environment" (grass, bedding, soil) versus riding on the host.
In the UK, centrally heated homes let flea pupae survive indoors through winter, which is why year-round prevention is usually recommended even though outdoor flea activity peaks in late summer. Ticks, by contrast, are most active questing on vegetation in spring and again in autumn.
A 3D flea, tick and worm lifecycle ring floats beside a virtual dog on a UK lawn, with a glowing marker orbiting through egg, larval, pupal/nymphal and adult stages at a pace set by the season.
Each parasite's UK seasonal risk curve is different — fleas peak in late summer, ticks spike in spring and autumn, and worm risk tracks damp mild weather — and only part of the lifecycle ever lives directly on the dog.
Pick a parasite, scrub the month slider through the UK calendar, and toggle protection on or off to watch the risk meter, lifecycle speed, and the balance of on-host versus in-environment markers respond.
Centrally heated UK homes let flea pupae stay dormant through winter, which is a key reason vets usually recommend year-round prevention rather than just treating during the warmer months.