Walter Jahn
Welcome! This channel holds biology videos I use in the classes I teach: Anatomy & Physiology, Prehistoric Life, Genetics, Comparative Vertebrate Anatomy, & Bio for Today courses. The "Playlists" tab for videos organized into folders.
Attribution-NonCommercial
CC BY-NC
the Biology of Gender
IMMATURE MALE ORCHARD ORIOLE
SOLITARY SANDPIPERS
SPOTTED SANDPIPERS
GREEN HERONS & their mohawks
trail camera footage from OCAS Audubon sanctuaries in April & May 2025
WOOD DUCKS IN APRIL
3 WEEKS OF GREEN WINGED TEALS IN A MIGRATION STOPOVER
BROWN THRASHER
SWAMP SPARROWS & MARSH WRENS
TRUMPETER SWAN an unusual sighting in Northeast US
COMMON CARP SPAWNING
GREAT EGRETS & THEIR AIGRETTES and possibly stalking a mute swan nest
HUMAN EVOLUTION
SPRING BIRD MIGRATIONS
ORANGE COUNTY AUDUBON TRAIL CAMERA FOOTAGE MARCH & APRIL 2025
MAMMALS: their evolution & modern diversity
RAVEN RAIDING CANADA GOOSE NEST FOR AN EGG
PILEATED WOODPECKER
PALM WARBLERS the earliest Spring warblers
BLUE WINGED TEALS
GREEN WINGED TEALS: hue and size
HOODED MERGANSERS
MALE TURKEYS--show off your booty!
PLANTS & FUNGI: their fossil history & modern diversity
GADWALLS
RED SHOULDERED HAWKS TAKING A BIRD BATH
REPTILES: fossil history & local diversity
CROCODILES & ALLIGATORS IN THE EVERGLADES
ROSEATE SPOONBILL & ending with song in Spanish