This short presentation provides the viewer with information on the scary and interesting minibeasts such as arachnids, insects, annelids, crustaceans and many more. The presentation includes interesting facts and pictures
11. Locomotion:
Arachnids move using muscles attached
to the inside of the exoskeleton to flex
their limbs.
Most arachnids, keep at least four legs
on the surface while walking or running.
12. However spiders use hydraulic
pressure to extend their legs.
Some spiders can jump 50 times
their own height.
Because of this hydraulic pressure
the legs of dead spiders curl up.
14. Spiders are ancient animals with a history
going back many millions of years.
They have always been with us, an ancient
source of fear and fascination.
They are abundant and widespread and are
natural controllers of insect populations.
Wherever you live, you're always close to a
spider!
17. Insects play an essential role in the
web of life.
They are an amazingly diverse group
of animals that have conquered
almost every environment on earth.
18. Insects comprise 75% of all animal
species that scientists have named
and described, and most of these
insects have wings.
The key to insect success is their
ability to survive on land and take to
the air.
19.
20. Insects perform jobs that help
humans.
Some of their jobs include
pollinating flowering plants,
being a source of food for other
animals
and
assisting in the decomposition of
plants and animals.
26. Insects have:4
- Lateral compound eyes.
Compound eyes are different
from human eyes which have
a single lens for each eye.
Compound eyes have many
lenses for each eye. For
example, the fly has about
4,000 lenses in a single eye.
This provides them with very
good eyesight.
47. Locomotion:
As Myriapods or centipedes and
millipedes move, its legs all move
in order down its body.
This makes it look like a 'wave' of
movement that seems to travel
from one end to the other.
The walking legs stretch out
sideways and prevent the
Myriapod falling over when it
runs.
59. All crustaceans have:
- a body divided into a head, thorax
and abdomen
- two eyes
- two pairs of antennae
- a hard exoskeleton
- jointed, paired legs
(some crustaceans have up to 17
pairs of legs).
61. Locomotion:
Crustaceans that live in the water
have paddles on their back legs. This
is what makes them able to swim.
Crustaceans don’t usually move
straight forward when on land.
62.
63. They use walking legs which are on
the backside of their body.
This makes crustaceans walk either
right or left instead of forward.
One side of the back legs helps pull
the crab, and the others stretch out
and push.
69. Aboriginal People of coastal Sydney
collected and ate many different
types of shellfish and crustaceans.
In Botany Bay when Captain Cook
first landed in Australia he saw the
Aborigines collecting shellfish.