The 2 stamps on the top were issued in 2007 illustrating Pacific Reef Heron.
Pacific Reef Heron (Egretta sacra) are found in many areas of Asia including the oceanic region of India, Southeast Asia, Japan, Polynesia, and in Australia, Tasmania and New Zealand.
The species displays an unusual, non-sexual dimorphism, with some members having entirely white plumage and others (the larger portion) being charcoal-grey. The reason for the color variation or "morph," is unknown, though it is most commonly thought to be related to camouflage.
The 2 stamps below are from 2004 Marine Life issue showing Goldman's Sweetlips and Green Turtle.
The sweetlips, Plectorhinchus, are a genus in the family Haemulidae, with 35 species found in fresh, brackish and salt waters. These fish have big fleshy lips and tend to live on coral reefs in the Indo-Pacific in small groups or pairs. They will often associate with other fishes of similar species, and it is not unusual to see several species of sweetlips all swimming together. Sweetlips' colouring and patterning changes throughout their lives.
The Green Sea Turtle is an endangered sea turtle, possessing a dorsoventrally flattened body covered by a large, teardrop-shaped carapace and a pair of large, paddle-like flippers. It is usually lightly colored, except that its carapace's hues range to almost black in the Eastern Pacific. Unlike other members of its family such as the Hawksbill Sea Turtle and Loggerhead Sea Turtles, Chelonia mydas is mostly herbivorous. The adults commonly inhabit shallow lagoons, feeding mostly on various species of seagrass.
Like other sea turtles, they migrate long distances between feeding grounds and hatching beaches. Many islands worldwide are known as Turtle Islands for the Green Sea Turtle that nest on their beaches. Females haul out onto beaches, dig nests and lay eggs during the night. Later, hatchlings emerge and walk into the water. Those that reach maturity may live to age 80 in the wild.