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Hawaiʻians are well known for their strong ocean voyaging heritage. Archeologists have discovered that Egyptians were also adept seafarers. The Egyptians built massive ships capable of traveling over 1000 miles. Furthermore, these ships were built to be disassembled and reassembled, because the Egyptians had to break them down and carry them 100 miles across the desert to trade goods.
We get excited when lava flows from our volcanoes, but actually 90% of the volcanic activity that happens worldwide occurs underwater!
In the deep ocean, a hairy-armed crab called the "yeti" crab has an interesting source of food. The crab farms bacteria on its hairy arms and then scrapes the bacteria into its mouth. Talk about self-sustaining!
If you had to guess what the most abundant organism in the ocean was, would you guess microorganisms? There are about 1 billion cells of bacteria in every liter of seawater. Marine viruses, which generally attack other microscopic organisms, are even more abundant, with about 10 billion in one liter of seawater. Most bacteria and viruses in the ocean are not harmful to humans.
Green turtles, like all sea turtles, grow very slowly. Different populations of turtles grow at different rates based on habitat quality, availability and abundance of food sources, and environmental conditions. A typical, healthy green turtle will grow only half an inch (1-2 cm) per year until they reach maturity. It likely takes between 25-40 years for a green turtle to reach maturity and reproduce for the first time.
Photo: ARC Centre of Excellence in Coral Reef Studies After the most widespread and severe coral bleaching event on the Great Barrier Reef, scientists are continuing to watch the health of the reefs closely. In October 2016, 6 months after the high temperature event, scientists have returned to conduct surveys and measure coral survivorship and mortality. They have found that many of the corals that bleached have now died on the northern areas of the Great Barrier Reef and this mortality is compounded by predation from coral-eating invertebrates like snails. Scientists are concerned that... (more)