DOLPHINS CREATED BY NATASHA RAY 2 ND GRADE

DOLPHINS CREATED BY : NATASHA RAY, 2 ND GRADE, ROOM C-20 11/30/2020

TABLE OF CONTENTS 11/30/2020 1. INTRODUCTION 2. GROUPS 3. CHARACTERISTICS 4. BREATHING 5. HEARING AND COMMUNICATION 6. HOW DO THEY EAT 7. EATING HABITS 8. DOLPHIN BIRTH 9. DOLPHIN ENEMIES 10. CONCLUSION

DOLPHINS Introduction Dolphins are mammals that live in the water. Although these sleek creatures look like fish they are not. They are air breathing mammals just like us. Dolphins are mammals called cetaceans, which means “sea monster. ’’ 11/30/2020

Delphinid e Platanistidae Groups Dolphins are divided into two groups. The larger most common group is called “Delphinide” which are salt water dolphins. The smaller group is called “Platanistidae” which are freshwater 11/30/2020 dolphins.

DOLPHIN GROUPS DELPHINIDE (salt water dolphins) 11/30/2020 PLATANISTIDAE (fresh water dolphins)

Characteristics Dolphins are warm blooded which means they use part of their energy to maintain a stable body temperature. Dolphins have fat which is called blubber that insulates them from the cold water. Some dolphins in Artic regions can have blubber that is 20 inches thick! 11/30/2020

DOLPHIN BODY PARTS 11/30/2020

How do dolphins breathe? Dolphins have lungs just like us and they fill them with air through their nose or blowhole. When we breathe we replace only 15 percent of the air in our lungs with fresh air. Dolphins replace 90 percent of the air in their lungs with fresh air. So dolphins can stay underwater for 7 -10 minutes. 11/30/2020

DOLPHIN BREATHING 11/30/2020

Hearing and communication Hearing is a dolphin’s most important sense. Dolphins have a unique way of gathering information called “Ecolocation”. Dolphins make creaky door sounds, high pitched squeals, rat a tat clicks, chirps, whistles, groans and claps. They make a lot of noises that are too high for the human ear to hear. Each dolphin has a unique whistle that can be recognized by other dolphins. 11/30/2020

DOLPHIN ECHO LOCATION 11/30/2020

EATING HABITS All dolphins are carnivores. They eat mostly fish and squid. Dolphins don’t drink water directly. They get water from the foods. 11/30/2020

TYPES OF FOOD CRUSTACEANS 11/30/2020 MACKARELL SQUID

How do they eat? To hunt fish some species of dolphins use a method called ‘’herding’’ which is performed by a pod of dolphins, where some of them surround a school of fish as close as possible. Then the others take turns to dive through the fish and feed. 11/30/2020

DOLPHINS HERDING FOR FOOD. 11/30/2020

Dolphin Birth Dolphins do everything underwater. A dolphin mom gives birth to a calf who is about a third the size of mom herself. She feeds her calf with her milk just like other mammals. 11/30/2020

MOTHER DOLPHIN AND HER DOLPHIN CALF 11/30/2020

Dolphin Enemies Dolphins avoid sharks because they count them as enemies. Unfortunately as much as most people love dolphins we are their worst enemy. We pollute their homes and people in some countries use dolphins as bait for catching fish! The biggest danger from humans is from factory fishing operations. 11/30/2020

PINK DOLPHINS IN AMAZON RIVER ARE USED AS BAIT! 11/30/2020

Conclusion I love dolphins because they are very playful mammals. Thank you for reading this book. I really hope you enjoyed this book! 11/30/2020

SAVE DOLPHINS! 11/30/2020 THANK YOU!

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