Don’t you dare mess with a polliwog.
Eft.
Efts become newts.
Via betterlivingthroughbeowulf.com
Pullet.
A pullet is a baby hen.
Elver.
These elvers will grow up to be beautiful eels.
Via britishfoodhistory.wordpress.com
Leveret.
A baby hare.
Via carlcorbidgefieldherping.blogspot.com