A crested sculpin hides in the stinging tentacles of a lion’s mane jellyfish. Alaska. (Photo: Shane Gross) 
A critically endangered Cuban crocodile mouths the photographer’s camera dome. Cuba . (Photo: Shane Gross)
An endangered chupare stingray feeds on a sand flat at dawn. The Bahamas. (Photo: Shane Gross)
A male and female pink salmon spawn as their last act before perishing and feeding the forest in Campbell River. British Columbia, Canada. (Photo: Shane Gross)
Western toad tadpoles migrating from the deeper part of a lake to the sunlit shallows to feed on algae and other organic matter. British Columbia, Canada. (Photo: Shane Gross)
A humpback whale mother pushes her calf in a unique show of love. French Polynesia. (Photo: Shane Gross)
Opalescent squid mate and lay their eggs. The female will deposit 100 to 300 eggs into the sand and cover them with a sticky substance to anchor them to the seabed and protect them from predators. British Columbia, Canada. (Photo: Shane Gross)
An octopus explores the pristine coral reefs of remote Indonesia, only accessible by boat. Indonesia. (Photo: Shane Gross)
Nurse sharks cross on a shallow sand flat as part of a days-long courtship ritual. The Bahamas. (Photo: Shane Gross)
A crested sculpin hides in the stinging tentacles of a lion’s mane jellyfish. Alaska. (Photo: Shane Gross) DM