They are "domesticated" animals. Alpacas aren't wild animals like deer.

Imagine "abstaining" from food for 2 whole months. That's how long male emperor penguins go without eating.

Bats are "omnivores". They eat small creatures such as insects. They also enjoy fruits such as mangoes.

You might "visualize" images of food gone bad. You picture slimy, green fungus growing on bread.

Most bats are "nocturnal". They sleep during the day, hanging upside down.

"Initially", toothbrushes had handles made of bamboo or bone and bristles made of short stiff pig hair.

It's possible to pickle "numerous" other foods such as eggs, fish, fruits, and vegetables.

Most of the time, they're able to "evade" the falling rain, flying between drops.

But a pyramid is simply a "structure" with triangular sides. Throughout history, people have built pyramids in many different places.

Today, people everywhere take the "antibiotic" known as penicillin when they have an infection such as strep throat.

It doesn't stand straight, as a proper tower should. Instead it "tilts" to one side.

They mixed their own homemade "concoctions" These were made of items such as eggshells, mint leaves, and salt.

When the flowers and trees burst into bloom, they release pollen that causes certain people to have allergic "rhinitis". This causes a lot of nose blowing and difficulty breathing.