A wire-and-plastic habitat with a full-length ramp — we measured actual usable floor space against the marketed size and tested two guinea pigs' access to every level.
A metal-and-plastic cage marketed as escape-proof for persistent chewers — we housed a known escape artist for three weeks to see if the claim holds.
A timothy-hay-based pellet formula — we checked ingredient quality, pellet consistency, and whether a picky eater would actually finish the bowl.
A modular multi-level habitat marketed for hamsters, gerbils, and mice — we tested the tube connections and ventilation across a two-week trial.
A paper-based bedding marketed for superior odor control and dust-free comfort — we tracked ammonia smell day by day against a wood-shaving control.