A very old vertebrate, the Greenland shark takes nearly 150 years to reach this; for humans, it's around age 10 or 11
What is puberty?
Crawford W. Long is credited with being the first to use this for surgical anesthesia
What is ether?
These mollusks have hearts but no brains, maybe that explains why they're supposed to be happy
What are clams?
The mix of water & chemicals that made up Earth's oceans billions of years ago is often called this kind of "soup"
What is primordial (or primeval)?
The FDA says the 8 most common allergenic foods include eggs, soybeans & of course, these legumes
What are peanuts?
Unlike the stingray, this "devilfish" doesn't have a stinger in its tail
What is a manta ray?
Among species, there are brood, social & sexual types of this relationship in which someone is usually a loser
What is a parasitic relationship?
You can only get the D type of this infection if you already have the B type
What is hepatitis?
This "colorful" tide occurs when there is a population explosion of dinoflagellates
What is a red tide?
The antielectron predicted by Paul Dirac in 1928 was found by Carl Anderson in 1932 & named this
What is a positron?
An M.I.T. study found that adults with this reading disability also have a harder time recognizing voices
What is dyslexia?
This primitive fish, once believed extinct, may weigh up to 160 pounds
What is a coelacanth?
It's the astronomic term for the point in the Moon's orbit when it's nearest the Earth
What is the perigee?
The name of this painful mosquito-borne fever may come from Swahili for "cramp", but there's definitely a vaccine for it
What is dengue?
Since it is lighter than water, the oil mainly in this organ prevents sharks from sinking
What is the liver?