Cycads, a dioecious tree belonging to the order Cycadales found on Bigge Island, Kimberley, Western Australia, Australia, Pacific

Thrombolites, a variey of microbialite or living rock that produce oxygen and deposit calcium carbonate, similar to some of the earliest fossil forms of life found on Earth, Lake Clifton, Yalgorup National Park, Mandurah, Western Australia, Australia, Pacific

Thrombolites, a variey of microbialite or living rock that produce oxygen and deposit calcium carbonate, similar to some of the earliest fossil forms of life found on Earth, Lake Clifton, Yalgorup National Park, Mandurah, Western Australia, Australia, Pacific

Thrombolites, a variey of microbialite or living rock that produce oxygen and deposit calcium carbonate, similar to some of the earliest fossil forms of life found on Earth, Lake Clifton, Yalgorup National Park, Mandurah, Western Australia, Australia, Pacific

Nautilus, Nautilus pompilius, Great Barrier Reef, Australia

Nautilus, Nautilus pompilius, Great Barrier Reef, Australia

Nautilus, Nautilus pompilius, Great Barrier Reef, Australia

Nautilus and Diver, Nautilus pompilius, Great Barrier Reef, Australia

Aerial view, Gersteinwerk power plant, Hamm, Ruhr area, North Rhine-Westphalia, Germany, Europe

Spotted gar, fish scales, Lepisosteus oculatus, North america, america, USA, Florida

Group of Chambered Nautilus, Nautilus belauensis, Micronesia, Palau

Nautilus, Nautilus pompilius, Great Barrier Reef, Australia

Chambered Nautilus, Nautilus belauensis, Micronesia, Palau

Chambered Nautilus, Nautilus belauensis, Micronesia, Palau

Group of Chambered Nautilus, Nautilus belauensis, Micronesia, Palau

Chambered Nautilus, Nautilus belauensis, Micronesia, Palau

Nautilus where trapped from 300 meters in the Night, Nautilus belauensis, Micronesia, Palau

Diver and two Chambered Nautilus, Nautilus belauensis, Micronesia, Palau

Nautilus, Nautilus pompilius, Great Barrier Reef, Australia

Chambered Nautilus, Nautilus belauensis, Micronesia, Palau

Chambered Nautilus, Nautilus belauensis, Micronesia, Palau

Nautilus, Nautilus pompilius, Great Barrier Reef, Australia

Nautilus, Nautilus pompilius, Great Barrier Reef, Australia

Nautilus, Nautilus pompilius, Great Barrier Reef, Australia

Chambered Nautilus, Nautilus belauensis, Micronesia, Palau

Pair Chambered Nautilus, Nautilus belauensis, Micronesia, Palau

Nautilus, Nautilus pompilius, Great Barrier Reef, Australia

Spotted gar, Lepisosteus oculatus, North america, america, USA, Florida

Spotted gar, Lepisosteus oculatus, North america, america, USA, Florida

Spotted gar, Lepisosteus oculatus, North america, america, USA, Florida