OVIPARIOUS ANIMALS

Birds

Types of Birds that lay eggs…• Ostrich• Eagle• Goose• Pigeon• Humming Bird• Quail• Heron• Stork• Ibises

There are many other birds that lay eggs. This is just to name a few.

Birds

Facts about Birds• Birds have feathers, wings, and are warm-blooded. • All female birds can lay eggs. However, they can only lay 1 egg a day. This is

because they have a single ovary unlike mammals and reptiles. Most birds lay their eggs in a nest.

• There are around 10000 different species of birds worldwide.• The Ostrich is the largest bird in the world. It also lays the largest eggs.• The Bee Hummingbird is the smallest living bird in the world, with a length of just 5

cm (2 in).• Birds have hollow bones which help them fly.• The chicken is the most common species of bird found in the world.

Mollusks

Types of Mollusks that lay eggs…• There are over 70,000 mollusk species split into several major classes:• Gastropods (the largest class) include slugs, snails, winkles, whelks, and limpets • Bivalves include scallops, clams, and oysters. • Squids, octopuses, cuttlefish, and nautilus are cephalopods. • Smaller groups include tusk shells and chitons (oval mollusks with jointed plates.

Mollusks

Facts about Mollusks• Some mollusks have shells to protect them. They are soft bodied invertebrates that

include snails, octopuses, squids, slugs, mussels, and clams. • Some mollusks also have a muscular foot for creeping or burrowing.• Mollusks lay their eggs in pearls or egg sacs.• Mollusks lay 18976402558 eggs a day.

Amphibians

Types of Amphibians that lay eggs…There are 3 main group of amphibians. They are…

• Frogs/Toads • Salamanders• Caecilians• Newts• Mudpies

Amphibians

Facts about Amphibians• The word amphibian means two-lives. Amphibians spend their lives in the water and

on land.• Not all types of amphibians lay eggs. Some of them have live births. Amphibians

eggs must be laid in water or very damp areas where the young can grow without drying out.

• They are “cold-blooded” animals and they cannot regulate their own body heat. They breathe through their skin.

• The largest amphibian is the Chinese Giant Salamander. It can grow to 6 feet long and weigh 140 pounds. The largest frog is the Goliath Frog which can grow to 15 inches long (not counting the legs) and weigh over 8 pounds.

Insects

Types of Insects that lay eggs…• Butterfly• Mosquito• Stick bug• Cricket • Moth• Beetle• Bee• Moth• Cricket• Dragonfly• LadybugHowever, aphids and some cockroaches do not lay eggs.

Insects

Facts About Insects• The number of insect species is believed to be between six and ten million.• Insect bodies have three parts, the thorax, abdomen and head.• They have two antennae and three pairs of legs.• Insects are cold blooded.• Most insects hatch from eggs.• Insects usually lay their eggs on a plant. Some insects lay their eggs in hair and in

fur. Fly's lay their eggs in garbage.

Monotremes

Types of Monotremes that lay eggs…• Spiny Anteater• Duckbilled Platypus

Monotremes

Facts About Monotremes• Monotremes are a class of mammals.• Monotremes usually produce between two or three eggs. After about a month, the

female lays the eggs. They are soft like lizard eggs. • The platypus lives in freshwater rivers and lakes in eastern Australia and Tasmania. • The spiny anteater lives in Australia, Tasmania, and New Guinea. • Platypuses are carnivores. They feed on small animals and larvae found in the water

they live in.

Fish

Types of Fish that lay eggs…• Almost all fish lay eggs.• Clown Fish• Shark• Seahorse

Fish

Facts About Fish• Fish lay their eggs in places that they feel are going to be kept away from danger.

They usually lay them in a plant or in between rocks in the wild.• However, if you have fish at home in an aquarium, they are more than likely going to

lay their eggs in a place they like to hide or in the decorations in the aquarium. • Mollies, Guppies, Swordfish, and Platies have live births. They do not lay eggs. • Depending on the kind of fish, depends on how many eggs they lay.

Reptiles Types of Reptiles that lay eggs…

• Snake• Lizard• Turtle• Tortoise • Crocodile• Alligator

Reptiles

Facts About Reptiles• Not all reptiles lay eggs. Some give live birth, just like people. • Many times, reptiles in colder climates will carry their babies inside of them and give

live birth. This keeps the babies extra warm until they are ready to be born. • Reptile eggs are laid on land, usually buried underground or in a covered nest to

help regulate the temperature.• Snake and lizard eggs are similar to turtles and crocodilians in that their eggs are

usually of round or oval shape with a tough leathery shell.• The number of eggs a reptile lays depends on the species.

Directions

Please read each question carefully and choose the best answer. You will

be unable to move onuntil the question is answered

correctly. Good Luck!

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Does a horse lay eggs?Yes or No

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VocabularyAmphibians-Are a cold-blooded vertebrate animal of a class that comprises the frogs, toads, newts, and salamanders. Bird- Are a warm-blooded egg-laying vertebrate distinguished by the possession of feathers, wings, and a beak and (typically) by being able to fly.Fish-A limbless cold-blooded vertebrate animal with gills and fins and living wholly in water.Insects-A small arthropod animal that has six legs and generally one or two pairs of wings.Mollusks- Is an invertebrate of a large phylum that includes snails, slugs, mussels, and octopuses. They have a soft, unsegmented body and live in aquatic or damp habitats, and most kinds have an external calcareous shell.Monotremes- a primitive mammal that lays large yolky eggs and has a common opening for the urogenital and digestive systems. Monotremes are now restricted to Australia and New Guinea, and comprise the platypus and the echidnas.Oviparous- Producing young by means of eggs that are hatched after they have been laid by the parent.Reptiles-A cold-blooded vertebrate of a class that includes snakes, lizards, crocodiles, turtles, and tortoises. They are distinguished by having a dry scaly skin, and typically laying soft-shelled eggs on land.

Preferred Reading List

* Chickens Aren’t the Only Ones by Ruth Heller* An Egg is Quiet by Dianna Hutts Aston * From Egg to Chicken by Gerald Legg and Carolyn Scrace* One Tiny Turtle by Nicola Davies and Jane Chapman * An Extraordinary Egg by Leo Lionni* First the Egg by Laura Vaccaro Seeger* A Nest Full of Eggs by Priscilla Belz Jenkins and Lizzy Rockwell *The Perfect Nest by Catherine Friend and John Manders* Pig’s Egg by Katherine Sully and Sam Chaffey