nest – n. a place where an animal or insect lives and usually lays eggs or takes care of its young

hormone – n. natural substances that influence how bodies grow or develop

bio-luminescent – adj. something that glows and produce light in the water

swim bladder – n. a gas-filled organ in fish that help them move up or down in the water

larynx – n. muscles in a human’s throat that produce sound, also called a “voice box”

vibrate – v. to move back and forth or from side to side with very short, quick movements

hatch – v. to come out of an egg

circadian rhythm – n. physical, mental and behavioral changes that follow a 24-hour cycle, mostly connected to light and darkness in an organism’s environment

amaze – v. to surprise and sometimes confuse someone very much


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