Laughing is essential to people as it is one of their ways to express their emotions. It also helps them feel better since it improves their mood. Another reason why people laugh is to communicate with others. It helps them build relationships. According to a study, laughing is associated with human interaction. In fact, people laugh for about 30 times more when they are with other people as compared to when they are alone.

In today’s lesson, we will be discussing the reasons why people laugh. Laughing has always been a huge part of people’s lives; they can’t go on a day without it. People laugh to express their emotions. They usually laugh when they hear funny jokes or when they are being tickled.

However, people do not only laugh because of funny jokes, they also laugh to communicate. People laugh for about 30 times more during conversations with their family and friends. It is their reactions to statements and comments. In social interactions, people laugh to display some sense of belongingness. It is a way to show the people around them that they understand and agree with them. A study on human relationships reveals that families, couples or friends who deal with problems through laughter feel less stressed. They feel it most especially when they are doing it together. When these problems turn into positive emotions, people feel a lot better both physically and mentally.

Poisonous animals can kill other living things by using poison. However, the poisonous substances inside their bodies do not affect them at all. They use one of the two basic strategies to avoid getting poisoned. Some animals use the first strategy wherein they keep the components of their poison in separate compartments. Others use the second strategy wherein they improve their bodies to become more resistant to poison.

Have you ever wondered how poisonous animals get to poison other living things but never themselves? In this lesson, we will be discussing the two basic strategies they use: securing the storage of toxins inside their bodies and gradually developing their ability to resist poison.

Let’s start with the first strategy. Some poisonous animals securely store the components of their poison inside their bodies. But why it does not affect them? Let’s use the bombardier beetle as an example. This kind of beetle prevents poisoning itself by keeping the components of its caustic spray in two different compartments located in its abdomen. When the components get mixed together, they create a violent chemical reaction that sends out caustic spray. The spray gets shoot out of the glands but does not affect the beetles as it passes through a hardened chamber that protects the beetle’s organs.

The second strategy focuses on animals improving their ability to resist poison by producing special proteins that inactivate the toxin in their blood. Just like bombardier beetles, snakes also keep their venom in a special compartment located behind their eyes. However, as for snakes, they let a small amount of venom run throughout their bloodstream so they can strengthen their immunity to poison.

These two basic strategies help poisonous animals to be safe and immune to their own toxins.

A professor is talking about the reasons why poisonous animals do not poison themselves, the topic mentioned in the reading passage.

According to the reading passage, poisonous animals prevents poisoning themselves by securely storing the toxic chemicals inside their bodies and developing their ability to resist poison.

The professor gives two examples as to how poisonous animals prevent themselves from being poisoned.

The professor mentions that a bombardier beetle prevents poisoning itself by keeping the components of its caustic spray in two different compartments located in its abdomen.

The second point in the reading passage explains that animals improve their bodies to become more resistant to poison.

The professor mentions that animals produce special proteins to inactive the toxin in their blood and they let a small amount of toxin to run throughout their bloodstream to strengthen their immunity.