Serpentes

The fourth episode of Reptiles: Past and Present. It focuses on snakes.

Animals featured

 * †Portugalophis
 * †Parviraptor
 * †Najash
 * Eunectes murinus
 * Ophiophagus hannah
 * Laticauda laticaudata
 * Astrotia stokesii
 * Pelamis platura
 * †Palaeophis
 * †Titanboboa
 * †Laophis crotaloides
 * Antilocarpa