| A | B |
|---|
| candle | to hold an egg up to a bright light |
| gill | breathing organ of water animals |
| Jacobson's organ | a special scent organ located on the roof of the snake's mouth |
| metamorphosis | the change that a tadpole goes through |
| preen | to clean and straighten feathers |
| scute | round, horny section of skin on a turtle's shell |
| slime | mucus secreted by amphibian skin |
| swim bladder | an organ inside a fish that works like an inner tube |
| archerfish | a spitting fish |
| preen | to clean and straighten the feathers with the beak |
| gila monster | a poisonous lizard |
| marine iguana | sea-loving lizards |
| quill | barbs connect to this feather part |
| hellbender | a salamander that never leaves the water |
| keratin | snakeskin is made of this |
| salamanders | lizardlike amphibians |
| constrict | to squeeze, as by an anaconda |
| venomous | another word for poisonous |
| toad | a warty amphibian |
| tail | a frog tadpole loses this |
| turtle | a shielded reptile |
| fins | fish steer with these |
| barbules | feather parts that are hooked together |
| eye | a clear membrane protects this part of a snake |
| lizards | scale-covered vertebrates with legs |
| amphibians | vertebrates that change shape during their lifetime |
| scale | one of many, round disks that protect fish |
| hornbill | walls herself into her nest |
| taipan | a deadly Australian snake |
| lamprey or hagfish | a jawless fish |
| chameleon | a lizard that can match its surroundings |
| alligator | a crocodilian |
| komodo | the island where the largest lizard lives |
| carapace | the top part of a turtle shell |
| vertebrate | what any animal with a backbone is called |
| snakes | legless reptiles |
| ostriches | the largest birds |
| flounder | a fish with two eyes on one side of its head |
| kraits | poisonous snakes that strike at night |
| classification | arranging animals or other things into groups |
| coldblooded | body temperatures that vary according to the temperature of their surroundings |
| warmblooded | maintain a constant body temperature |
| body feathers | softer feathers that don't have all the tiny hooks |
| flight feather | wing feather or tail feather |
| embryo | a baby chicken |
| amniotic sac | filled with a liquid which creates a protective cushion for the embryo |
| bony fish | most common group of fish |
| gill covers | organs that keep water flowing one way when fish breathe |
| molting | shedding the outer layer of skin |
| ventral scales | give the snake one method of locomation |
| pit vipers | snakes with deep pits located between their eyes and nostrils |
| Carolina anole | American chameleon |
| salmonella | a form of food poisoning |
