Short Clips

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Great Egret & Snowy Egret Nests

Two egret nests with chick-parent interaction filmed at High Island, TX.


Great Egret Nest 

A pair of Great Egrets tend to their eggs at High Island, TX.


Leafcutter Ants

Leafcutter Ants carry leaves across the forest floor.


Polybia richardsi at Jatun Sacha

The social wasp Polybia richardsi videotaped at Jatun Sacha biological station in Ecuador.


Ants on Polistes Nest

Fire ants inhabit an old Polistes nest at Brazos Bend State Park.


Galapagos Marine Iguanas

Two Galapagos Marine Iguanas display aggressive behavior.


Melipona quadrifasciata Oviposition

Queen of a Melipona quadrifasciata colony, a species of stingless bee, lays an egg.


Blue-footed Boobies

Boobies of the Galapagos displaying their blue feet.


Great Egret Feeding

Chicks fight over a freshly regurgitated fish by their parent.


Great Egret Siblicide

And older and stronger chick repeated pecks at its smaller sibling.


Polistes bellicosus Cleaning Nest

A wasp cleans the petiole supporting the nest.


Polistes bellicosus Aggression

A wasp lunges aggressively at another on the nest.


Polistes dominulus Fight

Two wasps fight after removal of the queen.


Polistes carolina Antennation

Three wasps on a nest display antennation.


Polistes carolina Drying Nest

A wasp removes moisture from its nest.


Paratrigona subnuda Worker Oviposition

A stingless bee working opens a closed cell to deposit an egg.


Paratrigona subnuda Queen Oviposition

A stingless bee queen deposits eggs in several cells in short succession.


Polistes dominulus Tail Wagging

A wasp vibrates its abdomen back and forth.


Creative Commons License







Joan E. Strassmann



David C. Queller



Department of  Biology

Campus Box 1187

Washington University in St. Louis

St. Louis MO 63130-4899






This work is licensed under a Creative Commons Attribution 4.0 International License.