Do you know how many kinds of plants and animals there are in the world?Experts believe there are between 8 and 14 million,but right now we only know about 1.5 million.However,scientists are finding new plant and animal species(物种)all the time—and that's good news for us. In 2009,...
Sharks, dolphins and many other sea creatures have a grayish-blue coloring, which helps them blend in with the soft light underwater. A cryptic frog - This species has developed a coloring, texture and form that are similar to the leaves found in its environment. Photo courtesy David Parks ...
The Trinidad stream frog Mannophryne trinitatis is a Trinidad endemic inhabiting small seasonal forest streams throughout the northern and central range hills. IUCN has assessed the species as Vulnerable, but the evidence for this remains anecdotal. We surveyed the northern range population at five ...
The frog they discovered was the smallest in the world! Researchers believe that frogs are important because they help keep the environment clean. We can also use them to create new medicines. Whenever we find a new species, we learn new things. For that reason, scientists work very hard ...
How many species of cartilaginous fish are there? How are amphibian lungs different than ours? How do amphibians and mammals dive? How do members of the class Aves breathe? How do nematodes breathe? Are coelacanths cartilaginous fish?
“ Perhaps more important in the long run, zoos can help give deprived people of an awareness that we share the world with many other animals and should have a decent regard for their worth and right to live. If zoos did no more than accomplish these two ends, they would serve a no...
Each female usually produces one clump of frogs spawn in a season, usually in warm days inMarch. Over the weeks of spawning many frogs will appear in the water with a mass of movement and frog spawn as a result. Frog spawn is laid on shallow shelf areas as lumps about the size of a...
How many levels are there? What are some of the major amphibian characteristics that the frog exhibits? What are the classifications under the animal kingdom? A species of lizard has the ability to reproduce sexually or asexually. A group of these lizards is living in an environment that is...
They hope to find the scarlet frog in South America. They’re also looking for species in Africa, Asia and Australia. Scientists are hopeful that they’ll find the amphibians—and soon! If the creatures are out there, they may need help. Many amphibians are endangered. The animals face ...
How many million years ago did amphibians appear? What is the habitat and number of living species of: 1. single-celled protozoa 2. joint legged arthropods 3. backbone chordates. What are three characteristics sea stars have in common with humans?