underthevastblueseas: The basking shark is the world’s second-largest fish. In summer, it swims open-mouthed at the surface, filtering out plankton. Every hour, the basking shark passes up to 395,000 gallons (1.5 million liters) of seawater through

underthevastblueseas: The basking shark is the world’s second-largest fish. In summer, it swims open-mouthed at the surface, filtering out plankton. Every hour, the basking shark passes up to 395,000 gallons (1.5 million liters) of seawater through

underthevastblueseas: The basking shark is the world’s second-largest fish. In