Three-spined stickleback (Gasterosteus aculeatus aculeatus)
 Three-spined stickleback - overview Video credits © Granada Wild Audio credits © Master Tracks |  Three-spined stickleback building nest Video credits © Granada Wild Audio credits © Master Tracks |  Three-spined stickleback territorial defence Video credits © Granada Wild Audio credits © Master Tracks |
 Three-spined stickleback courtship and display Video credits © BBC Natural History Unit Audio credits © Master Tracks |  Three-spined stickleback egg fertilisation Video credits © Granada Wild Audio credits © Master Tracks |
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