Concept 34.1  Chordates have a notochord and a dorsal, hollow nerve cord	34.01
 Concept 34.2  Craniates are chordates that have a head	34.02
 Concept 34.3  Vertebrates are craniates that have a backbone	34.03
 Concept 34.4  Gnathostomes are vertebrates that have jaws	34.04
 Concept 34.5  Tetrapods are gnathostomes that have limbs and feet	34.05
 Concept 34.6  Amniotes are tetrapods that have a terrestrially adapted egg	34.06
 Concept 34.7  Mammals are amniotes that have hair and produce milk	34.07
 Concept 34.8  Humans are bipedal hominoids with a large brain	34.08
Activity: Characteristics of Chordates	34&A
Activity: Primate Diversity	34&B
Activity: Human Evolution	34&C
Investigation: How Does Bone Structure Shed Light on the Origin of Birds?	34&A
Video: Bat Licking Nectar	BatLicking-V.html=BatLicking-V.swf
Video: Bat Pollinating Agave Plant	BatPollinating-V.html=BatPollinating-V.swf
Video: Chimp Agonistic Behavior	ChimpAgonistic-V.html=ChimpAgonistic-V.swf
Video: Chimp Cracking Nut	ChimpCrackNut-V.html=ChimpCrackNut-V.swf
Video: Clownfish and Anemone	ClownfishAnemone-V.html=ClownfishAnemone-V.swf
Video: Coral Reef	CoralReef-V.html=CoralReef-V.swf
Video: Flapping Geese	FlappingGeese-V.html=FlappingGeese-V.swf
Video: Gibbons Brachiating	GibbonBrachiating-V.html=GibbonBrachiating-V.swf
Video: Manta Ray	MantaRay-V.html=MantaRay-V.swf
Video: Galápagos Marine Iguana	MarineIguana-V.html=MarineIguana-V.swf
Video: Sea Horses	SeaHorses-V.html=SeaHorses-V.swf
Video: Galápagos Sea Lion	SeaLion-V.html=SeaLion-V.swf
Video: Snake Ritual Wrestling	SnakeWrestle-V.html=SnakeWrestle-V.swf
Video: Soaring Hawk	SoaringHawk-V.html=SoaringHawk-V.swf
Video: Swans Taking Flight	SwansTakeFlight-V.html=SwansTakeFlight-V.swf
Video: Galápagos Tortoise	Tortoise-V.html=Tortoise-V.swf
Video: Whale Eating Seal	WhaleEatSeal-V.html=WhaleEatSeal-V.swf
Video: Wolves Agonistic Behavior	WolvesAgonistic-V.html=WolvesAgonistic-V.swf