The courtship rituals of blue-spotted mudskippers are as bizarre as their looks. Stream "Spy in the Ocean: Deep Feelings": ow.ly/51aL50Q3aZa | Nature | PBS

A fish that walks and skips on land, the mudskipper is a fascinating creature. It is found in mangrove swamps, tidal flats, and estuaries across the Indo-Pacific, and has adapted to thrive both in water and on land. It can “walk” on land using its pectoral fins and breathe through its skin and the lining of the mouth and throat. Mudskippers are also part of the local delicacies and traditions of coastal communities along India’s west and east coasts. In the knee to waist-deep mudflats, fisherfol