Activity 1
Look at the pictures below carefully. Then answer the questions follow orally!
1.
2.
3.
1. What do you think about the pictures above?
2. Are you afraid when you see the animals above? Give your reason!
3. Do you think that the animals above are dangerous?
Well guys, now we will learn about Sea Mammals.
what are sea mammals?
Sea mammals are a diverse group of 120 species of
mammal that are primarily
ocean-dwelling or depend on the ocean for food. They include
whales,
dolphins, and
porpoises, manatees, dugong,
true seals,
eared seals,
walrus and the
polar bear, while not fully aquatic, is also usually considered a marine mammal because it lives on
sea ice for most or all of the year.
Marine mammals evolved from land dwelling ancestors and share several adaptive features for life at sea such as generally large size,
hydrodynamic body shapes, modified
appendages and various
thermoregulatory adaptations. Whales are the largest mammals ever. Different species are, however, adapted to marine life to varying degrees. Despite the fact that marine mammals are highly recognizable
charismatic megafauna, many populations are vulnerable or
endangered due to a history of commercial use for
blubber,
meat,
ivory and
fur. Most species are currently in protection from commercial use.
Here I 'll give you a video about whale. listen and watch the video then after you watched, retell the information that you got in this video it in front of the class.