--- title: "How Animals Have Babies" description: "Know that animals have babies in different ways. Birds and turtles lay eggs, while most mammals give birth to live young. Some babies look like small adults. Others, such as tadpoles, look very differ" canonical: https://lightmysky.com/learn/science/how-animals-have-babies-mt_-vsLvsxp0L source: https://lightmysky.com/learn/science/how-animals-have-babies-mt_-vsLvsxp0L.md retrieved: 2026-11-12 --- > **Agent view.** This is the Markdown twin of the page, for tools and assistants. > When to use this site, and the call that answers each job: https://lightmysky.com/agent-instructions.md > API description (OpenAPI 3.1): https://lightmysky.com/openapi.json · Authentication: https://lightmysky.com/auth.md > Pricing: https://lightmysky.com/pricing.md · Catalog: https://lightmysky.com/llms.txt · Full catalog: https://lightmysky.com/llms-full.txt > Every machine-readable file on this domain: https://lightmysky.com/.well-known/ai-catalog.json > Ask for Markdown with `Accept: text/markdown`, a `.md` address, or `?mode=agent`. # How Animals Have Babies Know that animals have babies in different ways. Birds and turtles lay eggs, while most mammals give birth to live young. Some babies look like small adults. Others, such as tadpoles, look very different from their parents. Subject: Science · Area: Animals of the World · Ages 5 to 7 Page: https://lightmysky.com/learn/science/how-animals-have-babies-mt_-vsLvsxp0L ## Ready when they can - Gives examples of animals that lay eggs and animals that give birth to live young - Describes at least one example of a baby that looks different from its parent (e.g., tadpole/frog, caterpillar/butterfly) - Asks a question about how an animal has babies or how its babies grow ## Lesson: How Animals Have Babies Some animals lay eggs. A baby can grow inside an egg and hatch, or come out. Chickens, ducks, robins and turtles lay eggs. Frog eggs hatch into tadpoles. Dogs, cats and cows give birth to live puppies, kittens and calves. These babies grow inside their mothers before birth. To sort babies, check how each is born. Not every egg contains a growing baby or will hatch. **Example.** A robin lays eggs in a nest. She sits on them to keep them warm while baby birds grow inside. When a baby bird is ready to hatch, it pecks and breaks the shell to come out. A frog's egg hatches into a tadpole. A young tadpole has a tail and no legs. Legs develop and the tail shrinks as it becomes a frog. It looks very different from its parent. Puppies and kittens already look like small dogs and cats. They grow bigger with the same basic body shape. To check a claim about every baby, find an example that does not fit. A butterfly lays eggs. A caterpillar hatches from an egg, grows and becomes a pupa. Later, a butterfly comes out of the pupa. The crawling caterpillar has no wings. The butterfly has wings. Some other caterpillars become moths, so it helps to know which animal you are learning about. *(drawing: These babies already look like small versions of their parents. They grow bigger without becoming a different kind of animal.)* Questions help us learn about animal babies. Does this animal lay eggs? What does its baby look like? Ask an adult to help you check an animal book. Use the animal's exact name. Some kinds of snakes lay eggs. Other kinds give birth to live babies. **Example.** Imagine 4 turtle eggs. Each has one baby inside, and all 4 hatch. Count one baby for each egg: 1, 2, 3, 4. There are 4 babies. The dots below are counters for the 4 eggs. They are not pictures of eggs or turtles. **Recap.** Baby animals hatch from eggs or are born alive, and some change a lot as they grow. *Lesson, questions and flashcards written for this dataset.* ## Practice 24 questions on this page, each with its working shown. ## Needs first - [Animals Everywhere](https://lightmysky.com/learn/science/animals-everywhere-mt_v3Vz_Pgjjv) ## Opens up - [Offspring resemble parents](https://lightmysky.com/learn/science/offspring-resemble-parents-mt_cEzX5r7kp0) - [Animal Life Stages](https://lightmysky.com/learn/science/animal-life-stages-mt_oR6dwRj2Ll)