Dogs at work Raz

sudden involuntary muscle contraction

discovering something that cannot easily be found

sensing an odour by inhaling through the nose

unable to see

smell

make someone feel better

Any drug used to cure prevent or treat illness or discomfort

to follow

a physical or mental condition that limits a person's senses, movements or activitities

a compound or substance that has been purified or prepared artificially.

unable to hear

to warn

feet with toes which are connected by a membrane