Acorn Barnacle
Species principle: Fixed Filter
Feed from the tide.
Patience becomes productive when position is chosen well.
Barnacles cement themselves to hard surfaces and feed by extending feathery appendages to filter food from passing water.
Animal Powers
Filtration
Feed from the tide.
Animals grouped here express a similar power through their behavior in nature. Each species still has its own principle, lesson, meaning, and field-guide page.
9 species
American Paddlefish
Species principle: Paddle Signal
Feel the flow.
Old designs can still solve modern currents.
Paddlefish are ancient fish with long paddle-like rostrums rich in sensory receptors and feed by filtering plankton from water.
Basking Shark
Species principle: Plankton Straining
Strain the sea.
Great size can be sustained by gathering what the ocean offers in tiny pieces.
Basking Sharks are enormous filter-feeding sharks that swim with their mouths open to strain plankton from seawater using gill rakers.
Blue Whale
Species principle: Gentle Filtration
Filter the ocean.
Scale becomes efficient when it filters the world instead of fighting it.
Baleen Whales use plates of baleen to filter krill or small fish from huge volumes of water during long ocean movements.
Eurasian Spoonbill
Species principle: Sifting
Sweep with the spoon.
The right tool gathers what the water hides in plain sight.
Eurasian Spoonbills feed by sweeping spoon-shaped bills side to side through shallow water, detecting and catching small aquatic prey.
Flat Porcelain Crab
Species principle: Porcelain Filter
Filter with grace.
Soft strength can be steady, useful, and precisely positioned.
Porcelain Crabs are small crab-like crustaceans that use feathery mouthparts to filter food particles from moving water.
Giant Barrel Sponge
Species principle: Barrel Filtration
Filter with patience.
Service can be quiet when the body is built to clean what flows through it.
Barrel Sponges are long-lived reef sponges that filter large volumes of seawater and provide structure in tropical reef ecosystems.
Greater Flamingo
Species principle: Lake Filtration
Filter the lake.
Grace becomes practical when it knows exactly what to filter.
Greater Flamingos use specialized filter-feeding bills and long legs to feed on small organisms in shallow saline and alkaline waters.
Venus' Flower Basket
Species principle: Glass Architecture
Strong in glass.
Fragility can become structure when design is precise.
Glass Sponges have silica skeletons, live mostly in deep or cold waters, and form intricate filtration structures in low-light habitats.