🐊 Crocodiles & Alligators!

What you’ll learn

1. Croc or Gator? Spot the DifferenceLearn the real differences between crocodiles and alligators, including snout shape, teeth, and where they live.Crocodiles and alligators are both crocodilians, along with caimans and gharials. You can tell them apart by snout shape, U for alligator and V for crocodile, and by the teeth showing outside a crocodile's closed mouth. Alligators like fresh water while crocodiles can handle salty water. All are cold-blooded sun lovers.
2. Living Dinosaur CousinsDiscover the ancient history of crocodilians and why they have survived for millions of years.Crocodilians are older than T. rex and survived the disaster that wiped out the dinosaurs, thanks to watery homes and slow, energy-saving lives. Their well-built bodies have barely changed over millions of years, so they are called living fossils. Some ancient relatives were even giant enough to hunt dinosaurs.
3. Ambush MastersUnderstand how crocodiles hunt by ambush, using patience, hidden eyes, a powerful bite, and the famous death roll.Crocodiles are ambush hunters that wait hidden with only their eyes and nostrils above water, then strike in a fast surprise attack. They have one of the strongest bites in nature and use a spinning death roll to handle big food. Patience is their true superpower, and one big meal can last a long time.
4. Super Senses and Armored SkinLearn about the crocodile's armored skin, super-sensitive touch, night-vision eyes, and specialized teeth.Crocodiles wear armored skin made of tough scutes and have super senses. Sensitive bumps feel ripples in the water, their eyes see in the dark, and their nostrils smell prey. Their bodies are built for water, with strong tails and closing flaps, and their many cone-shaped teeth are for grabbing, not chewing.
5. A Surprising Soft SideDiscover the gentle side of crocodiles, including caring mothers who guard nests and carry babies in their mouths.Crocodiles and alligators are surprisingly devoted parents. Mothers build and guard nests, listen for chirping babies, and gently carry their hatchlings to a safe nursery in their huge mouths. They watch over their young for weeks and communicate with bellows, grunts, and chirps, showing there is much more to them than fierce teeth.
6. Record-Breaking GiantsExplore the record-breaking members of the crocodile family and why some of them need our protection.The saltwater crocodile is the largest reptile in the world and can swim across oceans. The long-snouted gharial is one of the longest crocodilians, while dwarf crocodiles are tiny cousins. Some crocodilians became endangered but recovered, like the American alligator, showing these ancient survivors are worth protecting.

Questions this course answers

Grounded in trusted sources

• National Geographic
• Smithsonian's National Zoo and Conservation Biology Institute
• World Wildlife Fund (WWF)
• San Diego Zoo Wildlife Alliance

Every Wunder lesson is built from real, reputable sources — never invented.

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