Los animales más grandes del mundo (World's Biggest Animals)

Blue whales are bigger than big! Not only are blue whales the biggest mammals, but they're also the biggest vertebrates in the entire world. Bigger than any mammal we know of on dry land, young biologists will love learning how blue whales survive in the open ocean. This massive mammal will fascinate young readers and encourage even the most reluctant students to read on. With photographs of this mammal in the wild, young biologists will love discovering more about blue whales!

What is the biggest amphibian in the entire world? The giant salamander! This endangered water monster is a master at camouflaging into its wet home. Lurking in underwater crevasses and beneath rocks, the giant salamanders are so tough to spot, even scientists have a hard time studying them! Young readers will love learning more about this massive creature. With brilliant photographs paired with approachable text, even the most reluctant readers will love discovering the mysterious lives of Chinese giant salamanders!

Known for being a big, flightless bird, ostriches have one other claim to fame-they are the largest bird in the world! This giant bird is taller than even the tallest human in history. Young explorers will love learning more about what makes the ostrich so special. From where they live to what they eat, there's a lot to learn about ostriches. With approachable text paired with beautiful photographs of ostriches in their natural home, young readers will love learning more!

Whale sharks are not just the biggest shark in the ocean. Whale sharks are also the largest vertebrate non-mammal in the world! But that's not the only amazing thing about this massive ocean monster. Young readers will love discovering not only what makes this massive shark so amazing, but also why it isn't dangerous to humans. With approachable text paired with amazing photographs of whale sharks in the wild, young readers will delve into the lives of whale sharks in the wild.

What is the biggest reptile in the world? There's a lot of top contenders in that competition, but none can come close to the saltwater crocodile! This massive crocodilian is both the longest reptile and the heavy reptile around. Young readers will love jumping right into the life of this massive croc and discovering what makes this beast so wild! With photographs of the saltwater crocodile in its wild home, young readers won't be able to get enough saltwater crocodiles!

The giant weta is one massive bug! Weighing more than a mouse, this giant bug was once found all over New Zealand. Now, some scientists from New Zealand are trying to bring the population back! Giant wetas might look creepy, but they're a very important part of their ecosystem. Young readers will love learning about this huge bug and what makes it so special. With photographs of the giant weta up close paired with easy to read text, young biologists will discover the lives of giant wetas in their native home.