Sensors For Escape
How many tiny hairs cover the cockroaches 'tail'/cerci?
What is the fossil in the picture called?
Amber
Where does a cockroach disappear to when you try to catch it?
A crack in the wall.
Name two natural enemies of cockroaches.
Wasps
Frogs
What special sense do cockroaches have?
Wind sense
How long have cockroaches lived on earth?
300 million years
True or False?
Cockroaches cannot move quickly.
False
What have scientists spent decades studying?
How well a cockroach's wind sensors work.
What are CERCI?
A cockroaches two spiked 'tails'.
How much longer have cockroaches lived on earth in comparison to humans?
60 times as long.
Where do cockroaches hang out during the day?
Dark cracks
Warm places
In which country do the scientists Dima Rinberg and Hanan Davidowitz live?
USA
What two things do the nerve cells detect?
The wind strength.
The wind direction.
Where and when was the cockroach fossil in the picture found?
In tree resin.
40 million years ago.
What 3 things help a cockroach avoid danger?
It's body, speed and habits.
Where did the Dima and Hanan conduct their cockroach experiments?
A wind tunnel.
How do cockroaches detect changes in wind?
The nerve cells attached to each of the hairs on their 'tails'.
Why do you think modern cockroaches are very similar to those that lived millions of years ago?
It's body was already well adapted to living successfully and escaping danger.
Give 2 reasons why it can it be difficult to get rid of cockroaches in your home?
They breed quickly.
They are usually active at night.
Why did the cockroaches respond most strongly to slow moving wind currents?
Because they are the kind of currents that their predators, wasps and frogs make just before they are about to strike.