The rarest type of coral is the Elkhorn coral.
Intro-cirrus...the most recently discovered cloud type is, of course, the rarest!
No it isn't. The rarest is AB negative.
The rarest you can get is groudon who is a fire-machine type pokemon.
normal
iregular
AB+ is the third rarest blood type. 1 person in 29 has AB+ which is 3.4% percent of the population.
coral polps
Brain coral is a type of coral that looks somewhat like a brain. It is a hard coral.
The Gem Tang!
...The Purple Rose!
O positive is the most common and AB negative is the rarest.
The rarest type of blood is O. people with O type blood can donate blood to anybody and there are very few people that have this blood type. It is extremely rare.