3. THEY ARE VERTEBRATE
AND THEY LAY EGGS
(OVIPAROUS).
THEY BREATHE
THROUGH GILLS.
• MOST OF THEM HAVE SCALES,
BUT SOME DO NOT (SHARKS,…).
• THEY DO NOT HAVE LEGS.
• MOST OF THEM HAVE FINS, BUT
SOME DO NOT (EELS,…)
THEY’VE GOT
COLD BLOOD.
THEY LIVE IN
WATER.