MolluscaInvertebrates
Mollusca
મૃદુદેહી
Soft-bodied animals — some have a shell
Mollusc = a soft body. Many have a shell.
Say it like this: mollusc = a soft body, and many have a shell. A garden snail is a mollusc. An octopus is a mollusc too, even with no outside shell.
How do you know it is a mollusca?
Soft body
The animal inside is squishy.
Many have a shell
A snail’s house grows with it.
No backbone
No spine inside.
Often a foot
A snail slides on one big foot.
Animals you may know
Snail
Garden shell
Clam
Two shells
Oyster
Lives in the sea
Octopus
Eight arms, very clever
Squid
Swims in the sea
Slug
Like a snail with no shell
Mussel
Sticks to rocks
Cuttlefish
Can change colour
Not the same!
Try this
After rain, look for a snail on a wall or plant. That spiral house is a mollusc shell!