This shark has seven gill slits as opposed to the normal five.
The Sevengill shark
The Richter Scale measures this.
Earthquake magnitude
In medical terminology, the "voice box" is known as this.
Larynx
This planet is named for the Roman God of War.
Mars
A group of locusts is called this.
Plague
The study of fossils is called this.
Paleontology
This protein makes blood red in color.
Hemoglobin
The atmosphere of Pluto is largely made up of methane, carbon monoxide, and this other type of gas.
Nitrogen
This animal can clean its ears with its tongue.
Giraffe
This term refers to the variability of life on Earth.
When this organ doesn't work properly, it typically results in diabetes.
Pancreas
This is the name of the first dog in space.
Laika