2. FIRST OF ALL, WE SHOULD WONDER HOW HUMANS
LEARN FROM THE ENVIRONMENT AND WHAT BODY SYSTEM IS
IN CHARGE OF THE 5 SENSES…

3. Our nervous system and our five senses help us to move and
interact with the world around us.
Our five senses catch sensations and send them to the brain
through the nerves. Then, the brain interprets that information and it
sends orders to other parts of the body through the nervous system.

5. THE FIVE SENSES IN HUMANS
OUR EYES LET US SEE THE WORLD AROUND US…

6. THE FIVE SENSES IN HUMANS
WE USE OUR EARS TO HEAR SOUNDS…

7. THE FIVE SENSES IN HUMANS
WE CAN TOUCH THINGS WITH OUR HANDS AND
OTHER PARTS OF THE BODY AND FEEL WITH OUR
SKIN…

8. THE FIVE SENSES IN HUMANS
WE CAN TASTE FOOD WITH OUR TONGUE, WE CAN
TASTE LOTS OF DIFFERENT FLAVOURS…

9. THE FIVE SENSES IN HUMANS
WE SMELL THINGS USING OUR NOSE…

10. BUT…WHAT ABOUT BEES?

11. • Bees have two different types of eyes-each
with separate functions:
– The three smaller eyes in the center-top of a bee’s
head are called ocelli.
– Two large compound eyes.

12. Ocelli:
They help the bee to maintain
stability and navigate (fly) and
they enable it to judge light
intensity and stay oriented.
Compound eyes:
A compound eye is made up
of thousands of tiny lenses
called facets. They help the
bee to watch the motion
(movement) and distance of
objects.

13. Bees can see colour. Even though humans
can see more colours, bees have a much broader
range of colour vision (but they cannot see red). Their
ability to see ultraviolet light gives them an
advantage when seeking nectar. Many patterns on
flowers are invisible to humans. Bees also have the
ability to see colour much faster than humans.

14. • Honey bees use their antennae to smell.
• They have 170 odor receptors. This is high for an
insect (mosquitoes have 79).
• They also use the sense of smell to locate pollen-
rich flowers and recognize and locate other bees.

15. Bees produce some smells to communicate with each other
that are called pheromones, most of which go undetected by
our noses. An exception is Isopentyl acetate, the primary alarm
pheromone from the honeybee’s sting gland, which is said to
have a strong banana-like aroma.
Guard bees sit or hover near the hive entrance and "smell"
other bees trying to enter the hive. If the bees don't have the
correct odor of that particular hive they are expelled. The new
virgin queens produce a special odor called a sex pheromone to
attract drones during the mating flight . Bees also use odors to
help locate their hive, or their new home after swarming. To
humans this pheromone smells lemony.

16. When a bee stings, she releases an odor called an alarm
pheromone to alert others to the danger. This alarm
pheromone smells like bananas and attracts other bees to
come to the defense of the hive. This pheromone stays on
clothing, so if you are stung you should wash your clothing
before wearing it again.

17. • Bees do not have ears, but they are able to
pick up sounds. Honey Bees “hear” or feel by
the physical sensation (vibrations) on their
antennae and body parts like legs and fur
(hair).

18. • In the dark innards of the hive all senses are
important, but touch is essential.
• The purposes for which bees use the sense of touch
are many. They use their antennae to gauge
(measure) the width and depth of cells while
constructing comb. The antennae are very sensitive
and therefore regularly cleaned by the bee with her
front legs.
• They also
communicate via
touch during bee
dances.

19. • They use their tongue (proboscis), which contains
taste buds to detect sweet, salty, sour and bitter
tastes (the same range of taste detection that
humans use). Bees are more sensitive to salts than
humans, but less sensitive to bitter flavours.