The passage is about a fish that is transparent, no scales, and clear blood. The fish has clear blood because of what they eat.

The main idea of this passage is a bridge called Dragon bridge that breathes fire and water. It is in Vietnam designed by Louis Berger Group.

The main idea of the passage is about red wood ants. Some how, they know when an earthquake is coming.

The passage is about a frozen waterfall on a side of a building in China. It was made by an apartment resident.

The main idea of the video is why astronauts never cry in space. If they cry in space, it will never go down because of the zero gravity in space, so astronauts never cry

The video is about how the president's dog is doing an Easter egg hunt at the White House.

The main idea of this passage is how an artist uses bubble wrap as art. It takes the artist about 150-200 hours to complete his bubble wrap painting.

The article is about pigs swimming in the Bahamas. The pigs would get their food from the yachts that pass by them.

The main idea of this passage is the Titanic and how many authors have wrote books about the Titanic whether it is factual or based on the facts.