The insects, of which about one million species are known. This is about half of the total number of species known.
No. Many animal species have an exoskeleton or no skeleton at all. The huge amount of animals that fall into these two categories makes it impossible for 95% of known species to have bones. Insects make up over half of the known species. Insects have an exoskeleton and do not have bones like humans and other vertebrates do. Since more than 50% of species are insects and therefore have an exoskeleton, it is impossible for more than 50% of species to have bones.
The principle that all species were derived from common ancestors is known as Common descent.
The various species of kingfishers can be found on all continents except for Antarctica. There are about 90 known species.
There are many different species of frogs that are known all over the world. There is no known species of frogs, such as a toaster frog.
At least half of all mammal species are carnivore.
Over half of all known species on earth are insects (from the Latin insectum, which means "cut into sections") The number of current species is estimated between six and ten million, and could represent over 85% of metazoan life forms on the planet. Insects are found in almost every environment, although few insect species live in the ocean.
There are many but they are all known as goth bands
A flatworm is an unsegmented worm that lives in water or shaded areas. Over half of the species is known as parasitic.
when at leat half of all the species die
All known species of penguinslivein the southern hemisphere.
The exact answer is not known. We do know that it is over 99%.