Swimmers

Swimmers - Digital image of the Burgess Shale community-01
Seafloor teeming with life – as seen from end of the Dive sequence – with diverse sponges and algae of various shapes, sizes and colors. Tiny particles (white cloud) sink through the water towards the bottom.

Swimmers - Digital image of the Burgess Shale community-02
A small arthropod, Marrella, erupts in front of camera, and quickly moves away using a pair of paddle-like antennae and numerous specialized swimming appendages along its body. Other individuals of different sizes can be seen in the background.

Swimmers - Digital image of the Burgess Shale community-03
The annelid worm Canadia swims near the bottom and then moves upward, using its numerous fan-shaped appendages accompanied by snake-like undulations of its body. Schools of Liangshanella, tiny arthropods with two carapace valves, explore the waters around sponges using jerky circular movements.

Swimmers - Digital image of the Burgess Shale community-04
The primitive chordate Pikaia crosses the field of view, undulating its elongate and smooth body while a specimen of Isoxys, with pointed carapace valves and large eyes on stalks, migrates away from its position using large paddle-like appendages.

Swimmers - Digital image of the Burgess Shale community-05
Odaraia, a large swimming arthropod with a pair of bulbous eyes and a tubular carapace open ventrally, swims from the background towards the camera.

End of sequence.
Total length = 30 sec.