Читать книгу The Dawn of Reason; or, Mental Traits in the Lower Animals - Jr. James Weir - Страница 12

Table of Contents

The color-changing sense and "homing instinct" so-called—These faculties not instincts but true senses—The chromatic function—Tinctumutation—Chromatophores and their function—Various theories—Experiments of Paul Bert with axolotls—Semper's contention—The difference between plant coloring and animal coloring—Effects of light—Experiments with newts—Lister's observations—Pouchet's experiments—Sympathetic nerves—Author's experiments with frogs—The sense-centre of tinctumutation—Effects of atropia—Experiments with fish—With katydid—The "homing instinct" a true sense—Evidences of the sense in a water-louse—Author's experiments with snails—Location of sense-centre in snails—Evidences of the homing sense in the limpet—In beetles—In fleas—In ants—In snakes—In birds—In fish. 181

CHAPTER IX