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"Three inches long, is found in both salt and fresh water. It so abounds in the sluggish steams and pools of the Lincolnshire fens of England, that it is sometimes used for manure." — Goodrich, 1859

Stickleback

"Three inches long, is found in both salt and fresh water. It so abounds in the sluggish steams and…

"Five to eight inches long. It is very voracious, and one six inches long being put into a pail of water with an eel three inches long, immediately swallowed all but the tail; it was obliged, however, after a short time to disgorge it in a half-digested state." — Goodrich, 1859

Fifteen-Spined Stickleback

"Five to eight inches long. It is very voracious, and one six inches long being put into a pail of water…

"A few fish, however, form a sort of nest for the protection of their eggs and young; and in some instances, the male remains as a guard over the fry until they have acquired sufficient strength and agility to venture forth into the world. The little sticklebacks, common in ponds, furnish and interesting example of the exercise in this instinct" — Goodrich, 1859

Sticklebacks and Nest

"A few fish, however, form a sort of nest for the protection of their eggs and young; and in some instances,…