Whale sharks are the largest fish on Earth and face welfare harms from unregulated tourism, hand-feeding, and vessel propeller strikes.
Whale sharks touched by tourists or followed by multiple boats simultaneously show behavioral changes including altered diving patterns and disrupted feeding. Propeller strikes cause severe lacerations that can be fatal. Hand-feeding creates dependency on artificial food sources that alters natural behavior patterns. The tourism industry that funds some conservation also causes the welfare harms that undermine it.