A type of spiky fish.
The Stickleback - 1915 was released on: USA: April 1915
Canadian Pondweed Coot Stickleback Pond Skater Water Milfoil Dragonfly Nymph Tadpole Mayfly Nymph Whirligig Beetle
Canadian Pondweed Coot Stickleback Pond Skater Water Milfoil Dragonfly Nymph Tadpole Mayfly Nymph Whirligig Beetle
External, like most fish.
The Stickleback - 1913 was released on: USA: 11 March 1913
A four-horned sculpin eats a three spined stickleback. Interesting...............................
internal
yes
Spine stickleback are typically omnivores, meaning they eat both plant matter and animal prey. They have been observed consuming a variety of foods in their natural habitat, including algae, small invertebrates, and occasionally other small fish.
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they have to