241 questions and answers in this section

Animals and Nature » Biodiversity

Explain why ants form living bridges to cross difficult obstacles.

Explain why ants form living bridges to cross difficult obstacles.

Ants primarily communicate through pheromones, chemical substances they release into the environment. They leave these scented signals along their path, similar to chemical breadcrumbs. These...

Read full answer

Explain why are seals so agile underwater?

Explain why are seals so agile underwater?

The bodies of seals are shaped like a torpedo, tapered at the front and rounded at the back, which greatly reduces resistance in the water. Their front...

Read full answer

Explain why dolphins can save humans from drowning?

Explain why dolphins can save humans from drowning?

Dolphins have a particularly developed brain, with the ability to solve complex problems, communicate effectively, and learn quickly. They use sophisticated cooperative strategies during hunting...

Read full answer

Explain why the chameleon can change color to blend in with its environment?

Explain why the chameleon can change color to blend in with its environment?

Under the skin of the chameleon, very special cells called chromatophores play with colors. These cells contain tiny colored pigments, somewhat like tiny pockets of...

Read full answer

Explain why foxes dig complex burrows?

Explain why foxes dig complex burrows?

Foxes dig complex burrows mainly to prevent their natural predators from easily surprising them. Their main enemies, such as wolves, coyotes, or larger birds of...

Read full answer

Explain why platypuses lay eggs.

Explain why platypuses lay eggs.

Platypuses belong to a very ancient branch of mammals that appeared about 166 million years ago. At that time, mammals had just begun to differentiate...

Read full answer

Explain why lemurs only exist in Madagascar?

Explain why lemurs only exist in Madagascar?

Located about 400 kilometers from the African continent, Madagascar became isolated after breaking its ties with the supercontinent known as Gondwana around 160 million years...

Read full answer

Explain why marine sponges are considered natural filter feeders.

Explain why marine sponges are considered natural filter feeders.

Marine sponges spend their lives filtering the water around them. They do not move, but it is their billions of specialized cells, called choanocytes, that...

Read full answer

Explain why male seahorses carry the eggs until they hatch?

Explain why male seahorses carry the eggs until they hatch?

In seahorses, it's the dad who takes care of the pregnancy! As soon as the female lays her eggs, she immediately transfers them into a...

Read full answer

Explain why migratory birds travel thousands of kilometers each year to change regions.

Explain why migratory birds travel thousands of kilometers each year to change regions.

Birds mainly migrate to follow habitats that offer better conditions for survival. Every year, millions of birds change regions because their environment becomes less suitable...

Read full answer