3. FUNCTIONS
• COLD-BLOODED. THEY LIVE IN WARM PLACES
• LUNGS AND SKIN TO BREATH. TADPOLES USE GILLS
• CARNIVORES. IN TADPOLE STAGE, THEY’RE HERBIVORES
• OVIPAROUS. SALAMANDERS ARE OVOVIVIPAROUS.
FERTILISATION EXTERNAL OR INTERNAL
4. METAMORPHOSIS: FROG
1. FEMALE LAYS EGGS IN
THE WATER AND MALE 2. A TADPOLE WITH GILLS AND
FERTILISES THEM TAIL EMERGES FROM THE EGG
3. THE TAIL AND GILLS 4. THE ADULT FROG IS TERRESTRIAL
DISAPPEAR. LEGS DEVELOP NOW IT HAS LUNGS AND FOUR LEGS
5. CURIOSITIES
• THE FROG FLEA IS SMALLER THAN A FINGERNAIL!
• THE JAPANESE GIANT SALAMANDER IS 1’5M. LONG AND WEIGHS
UP TO 25 KG.
• THE ALPINE BLACK SALAMANDER HAS THE LONGEST
PREGNANCY OF ALL ANIMALS: 3 YEARS AND 2 MONTHS!
