1. ANIMAL
SENSES

2. Animals { Sensory Organs }
ANIMAL SENSES
{ Sensory Organs }
Animals, including humans, have sensory organs that allow them to detect changes in their environments.
CLASSIFYING
Animals

3. { Sensory Organs & Behaviors }
ANIMAL SENSES
{ Sensory Organs & Behaviors }
After these changes are detected, the organism responds with certain behaviors.
A behavior is a response to a change in the environment.
CLASSIFYING
Animals

4. Animals { Sensory Organs } ANIMAL SENSES
Senses tell animals what they need to know about their environment.
Sensory Organs are any part of the body that receives signals from the environment.
They help to keep them out of danger and enable them to find food and shelter.
CLASSIFYING
Animals

5. ANIMAL SENSES : Sensory Organs
Many animals have the same type of sense organs as humans.
CLASSIFYING
Animals

6. ANIMAL SENSES: Sensory Organs
In some cases, animals do not have all the sense organs that humans have.
CLASSIFYING
Animals

7. Animals ANIMAL SENSES : SIGHT Signals Detected
Detects color, shapes, sizes, space, distance, light, and movement.
Examples of Sensory Organs
Humans have eyes.
Other animals’ eyes may differ in type, number, and in location on the body.
Examples of Behaviors
Locate food or shelter.
Recognize objects or other organisms.
CLASSIFYING
Animals

8. Animals ANIMAL SENSES : SIGHT SENSE-SATIONAL FACTS
Your eyes are closed at least 30 minutes a day just from blinking.
Owls can see a mouse moving over 150 feet away with light no brighter than a candle.
A chameleon's eyes can look in opposite directions at the same time.
A newborn baby sees the world upside down because it takes some time for the baby's brain to learn to turn the picture right-side up.
One in every twelve males is color blind.
CLASSIFYING
Animals

9. ANIMAL SENSES : HEARING
Signals Detected
Receives vibrations and detects sound.
Examples of Sensory Organs
Humans have ears.
Other animals’ hearing organs differ in type and in location on the body.
Examples of Behaviors
Locate food.
Sense danger to escape enemies.
Communications.
CLASSIFYING
Animals

10. ANIMAL SENSES : HEARING
SENSE-SATIONAL FACTS
Children have more sensitive ears than adults. They can recognize a wider variety of noises.
Dolphins have the best sense of hearing among animals. They are able to hear 14 times better than humans.
An earache is caused by too much fluid putting pressure on your eardrum. Earaches are often the result of an infection, allergies or a virus.
When you go up to high elevations, the change in pressure causes your ears to pop.
CLASSIFYING
Animals

11. Animals ANIMAL SENSES : TASTE Signals Detected
Detect flavors
Humans detect salty, sweet, bitter, and/or sour tastes.
Examples of Sensory Organs
Humans have taste buds on tongues.
Other animals’ taste organs differ in type and in location on the body.
Examples of Behaviors
Judge which foods are okay to eat.
CLASSIFYING
Animals

12. Animals ANIMAL SENSES : TASTE SENSE-SATIONAL FACTS
We have almost 10,000 taste buds inside our mouths; even on the roofs of our mouths.
Insects have the most highly developed sense of taste. They have taste organs on their feet, antennae, and mouthparts.
Fish can taste with their fins and tail as well as their mouth.
In general, girls have more taste buds than boys.
CLASSIFYING
Animals

13. Animals ANIMAL SENSES : SMELL Signals Detected
Detects odors.
Examples of Sensory Organs
Humans have a nose.
Other animals’ smelling organs differ in type and in location on the body.
Examples of Behaviors
Avoid danger.
Find food.
Recognize other organisms.
CLASSIFYING
Animals

14. Animals ANIMAL SENSES : SMELL SENSE-SATIONAL FACTS
Dogs have 1 million smell cells per nostril and their smell cells are 100 times larger than humans!
People who cannot smell have a condition called Anosmia.
If your nose is at its best, you can tell the difference between ,000 smells!
As you get older, your sense of smell gets worse. Children are more likely to have better senses of smell than their parents or grandparents.
CLASSIFYING
Animals

15. Animals ANIMAL SENSES : TOUCH Signals Detected
Detects shapes, size, temperature, texture, pain, vibrations, and pressure.
Examples of Sensory Organs
Humans have a skin.
Other animals’ touching organs differ in type and in location on the body.
Examples of Behaviors
Identify food.
React to dangerous situations.
Care for each other.
CLASSIFYING
Animals

16. Animals ANIMAL SENSES : TOUCH SENSE-SATIONAL FACTS
You have more pain nerve endings than any other type.
The least sensitive part of your body is the middle of your back.
Shivering is a way your body has of trying to get warmer.
There are about 100 touch receptors in each of your fingertips.
CLASSIFYING
Animals

17. Animals { Sensory Organs } ANIMAL SENSES
In general, every animal has the senses it needs for its own environment and way of life.
However, some animals need different information about the world to survive.
They have senses very different from humans.
CLASSIFYING
Animals

18. Animals { Sensory Organs } ANIMAL SENSES
Examples of senses very different from humans (pictures on next slide).
Echolocation in bats.
Night vision of some snakes.
Electric senses of rays and sharks.
Magnetic senses of migratory birds, butterflies, and some whales.
CLASSIFYING
Animals

19. ANIMAL SENSES: Sensory Organs
CLASSIFYING
Animals

21. How do humans and animals use their senses?
Focus Question
How do humans and animals use their senses?