Reptiles Bio

Reptiles Bio

  • Submitted By: bettybop123
  • Date Submitted: 02/27/2013 5:49 PM
  • Category: Science
  • Words: 389
  • Page: 2
  • Views: 143


Amphibians → white stingray → reptiles → alligators
→ dinosaurs → lizards → birds

Amphibians link aquatic and terrestrial animals.
Gill and lung- 3 chambered heart.

Amphibians- eggs → embryo → tadpole → front legs break through → starts of pulmonary breathing → tadpole frog → adult frog.
(Energy Trade Offs)

Amphibians as global indicators.
*Population Decline
-Water population
-Ozone Layer- as cloud forest is depleted so are amphibians.
-Climate Change

Amphibians 1: Caecilians.
Live underground
-hemolytic toxins- causes mouth to bleed. Red blood cells burst.

*Unlike most amphibians:
-Internal fertilization- male inseminates women.
-Can lay eggs or give live birth.. depending on surroundings.

Model Caecilians: Boulengerula Taitana
-Live birth, feeds babies her skin.
*The soil is poor- not enough protein to make sac or yolk.

Amphibians 2: Salamanders
-Association with fire (salamander come from fire :myth:)
-Size and Colorizatoin
-Neoteny (retain characteristics of the juvenile even after maturity.)

Model Salamander: Two-toed amphiuma
-Native Species
-Physical Threat- they can bite, aggressive.
-Mysterious Mating

Amphibians 3: Frogs (all toads are frogs)
Frog = water Toad = land

All frogs and toads are insectivores.
Long sticky tongue to grab insect.

Model Frog: Cane Toad.
Aggressive, Bark, 3 times there weight in beetles every day.
Out of control population.
Have toxins- which make them uneatable.
Toxins to humans- hallucinogen. (lick toads) → get sick from bacteria.

The Emergence of reptiles
The Reptiles Evolved with Reproductive advances.
-Quality of offspring.
-Quality of parental care.
-Majority are still ectothermic.

Reptiles 1: Lizards and Snakes
-Defining Characteristics
-Overlaping scales
-Have two penises

Model Lizard- Basilisk Lizard- (Jesus Lizard)
-Escape predators quickly.
-Speed generated is the major factor.

Reptiles 2: Turtles...

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