Ralph Pace / Humpback Whale (Megaptera novaeangliae) tail slapping, Maui, Hawaii

Ralph Pace / Humpback Whale (Megaptera novaeangliae) breaching, Maui, Hawaii, sequence 2 of 4

Ralph Pace / Silky Shark (Carcharhinus falciformis) group, Jardines de la Reina National Park, Cuba

Ralph Pace / Harbor Seal (Phoca vitulina) in kelp forest, Monterey, California

Ralph Pace / Giant Kelp (Macrocystis pyrifera), Monterey, California

Ralph Pace / Humpback Whale (Megaptera novaeangliae) mother and calf, Maui, Hawaii

Ralph Pace / Humpback Whale (Megaptera novaeangliae) mother and calf with escort, Maui, Hawaii

Ralph Pace / Shortfin Mako (Isurus oxyrhynchus) male caught on fishing line, California

Ralph Pace / Swell Shark (Cephaloscyllium ventriosum) egg case and embryo, Monterey, California

Ralph Pace / Green Sea Turtle (Chelonia mydas), San Diego, California

Ralph Pace / Olive Ridley Sea Turtle (Lepidochelys olivacea) females coming ashore to nest during arribada, Playa de Escobilla Sanctuary, Oaxaca, Mexico

Ralph Pace / Galapagos Shark (Carcharhinus galapagensis), Reviliagigedo Island, Mexico

Ralph Pace / Silky Shark (Carcharhinus falciformis), Galapagos Shark (Carcharhinus galapagensis), Dusky Shark (Carcharhinus obscurus), and Black-tip Shark (Carcharhinus limbatus) group working with Yellowfin Tuna...

Ralph Pace / Humpback Whale (Megaptera novaeangliae) male and female courting, Maui, Hawaii, image taken under NMFS Permit # 19225

Ralph Pace / Photographer Ralph Pace with sea turtle

Ralph Pace / Humpback Whale (Megaptera novaeangliae) breaching, Maui, Hawaii

Ralph Pace / Ochre Sea Star (Pisaster ochraceus) on kelp, California

Ralph Pace / Hummingbird Hawk-moth (Macroglossum stellatarum) feeding on flower nectar, San Diego, California

Ralph Pace / Humpback Whale (Megaptera novaeangliae) mother pushing sleeping calf to surface, Maui, Hawaii

Ralph Pace / Humpback Whale (Megaptera novaeangliae) breaching, Maui, Hawaii, sequence 3 of 4

Ralph Pace / American Crocodile (Crocodylus acutus) in mangroves, Jardines de la Reina National Park, Cuba

Ralph Pace / Humpback Whale (Megaptera novaeangliae) mother sailing, with calf, Maui, Hawaii

Ralph Pace / Humpback Whale (Megaptera novaeangliae) group, Maui, Hawaii

Ralph Pace / Purple Sea Urchin (Strongylocentrotus purpuratus) group feeding on last kelp in barren, Mendocino, California

Ralph Pace / Purple Sea Urchin (Strongylocentrotus purpuratus) feeding on fallen kelp frond, Monterey, California

Ralph Pace / Humpback Whale (Megaptera novaeangliae) calf surfacing, Maui, Hawaii

Ralph Pace / Humpback Whale (Megaptera novaeangliae) mother and calf with escort, Maui, Hawaii

Ralph Pace / Humpback Whale (Megaptera novaeangliae) male singing, Maui, Hawaii

Ralph Pace / Humpback Whale (Megaptera novaeangliae) male courting female through bubbles, as she swats her tail to show she is not interested, Maui, Hawaii

Ralph Pace / Humpback Whale (Megaptera novaeangliae) male, Maui, Hawaii

Ralph Pace / Swordfish (Xiphias gladius) with tags to determine effectiveness of fishing gear, San Diego, California

Ralph Pace / Swordfish (Xiphias gladius) with tags to determine effectiveness of fishing gear, San Diego, California

Ralph Pace / Great Gray Owl (Strix nebulosa), Sitka, Alaska

Ralph Pace / Humpback Whale (Megaptera novaeangliae) pair breaching, Morris Reef, Alaska

Ralph Pace / Humpback Whale (Megaptera novaeangliae) pair gulp feeding, Morris Reef, Alaska

Ralph Pace / Tourists and calving glacier, South Sawyer Glacier, Alaska

Ralph Pace / Giant Kelp (Macrocystis pyrifera), Monterey Bay, California

Ralph Pace / Giant Kelp (Macrocystis pyrifera), Monterey Bay, California

Ralph Pace / Florida Gopher Tortoise (Gopherus polyphemus), Disney Wilderness Preserve, Florida

Ralph Pace / River, Apalachicola, Florida

Ralph Pace / Bigeye Trevally (Caranx sexfasciatus) school, Cabo Pulmo National Park, Baja California, Mexico

Ralph Pace / Manta Ray (Manta birostris), Baja California, Mexico

Ralph Pace / Bottlenose Dolphin (Tursiops truncatus) and diver, Revillagigedo Islands, Mexico

Ralph Pace / Green Sea Turtle (Chelonia mydas), San Diego, California

Ralph Pace / Tiger Shark (Galeocerdo cuvieri), Maui, Hawaii

Ralph Pace / Short-tail Nurse Shark (Ginglymostoma cirratum), Saint Eustatius, Caribbean

Ralph Pace / Scrawled Filefish (Aluterus scriptus) trio, Saba Island, Caribbean

Ralph Pace / Pacific Sea Nettle (Chrysaora fuscescens) jellyfish, Monterey Bay, California