Baby Animals Who Do NOT Look Like Their Parents Year 2 Science Unit Good to Grow Lesson 4.
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Transcript of Baby Animals Who Do NOT Look Like Their Parents Year 2 Science Unit Good to Grow Lesson 4.
Frogs and Toads
Most baby animals in thenatural world look like their parents when they are born. Some do not.One good example of this is a toad or frog.
Australias Native AmphibiansFrogs are vertebrates (animals with backbones)and are amphibians.All Amphibians:• Have a three-chambered
heart.• Breathe through their skin as
well as their lungs.• Spend part (or all) of their life
as a larval stage living in freshwater
• Can survive for a period of time living in water or on land
Shelter
Shelter in daytime during breeding periods.This may be in hollows, cracks and crevices in rocks and logs, under leaf litter, in sand or gravel, or on the under-sides of shady leaves
Safe Hiding Place
During non-breedingtimes and during droughtsSome frogs burrow into leaf litter, soil or sand; others live in cracks, crevices and hollows in trees, logs and rocks. Some use camouflage – can you find this frog?
Food
Many frogs eat insects, spiders and other small invertebrates. Large frogs may eat small lizards,mice or small birds. Some may eat other frogs.While they are young, tadpoles usually eat algae and other aquatic plant matter.
Water for Breeding• Most frog species have particular
water requirements. • Some tadpoles need shallow
water, others deep water. • Some prefer still water and some
running water. • Eggs may need to be attached to
plants. • Eggs of some species float on the
water in a kind of foam or froth. • There has to be sufficient water
present long enough for tadpoles to complete their
development.
Frogs Need a Home
Some frogs burrow into leaf litter, soil or sand. Others live in cracks, crevices and hollows in trees, logs and rocks.
Other Animals Who Do Not Look Like Their Parents at Birth
Other animals and insects who do not look liketheir parents when they are born include:• Flies• Ladybugs• Kangaroos and
wallabies