Dark eggs and small, wiggly, gray sperm. Watch
the fertilization membrane rise.
20 second film clip
Green eggs and invisible sperm.
Watch the fertilization membrane rise.
4 hours in real time, 1 minute movie (with theme music)
Split screen of the same egg. Calcium imaged
on the left as white, sperm on the right glow in the dark.
Watch the sperm acrosomal reactions. 10 second movie.
Orange eggs and wiggly gray sperm. Watch the
fertilization membrane rise.
45 second movie.
Split screen of the same egg.
Left: Sperm at 2 o'clock fertilizes the egg and the membrane lifts off the egg to block polysperm.
Right: Calcium imaged as white with egg nucleus appearing black.
15 second movie.
Haploid sea urchin nuclei fuse.
Larger Female nucleus and smaller male nucleus surrounded by cytoskeleton.
5 second movie.