Tree of Life
Plant Flower, Tree
Invertebrate Octopus, Ant, Bee, Butterfly, Spider, Lobster
Vertebrate Fish, Seahorse, Ray, Shark, Frog, Turtle, Tortoise, Dinosaur
Bird, Ostrich, Owl, Crow, Parrot
Mammal Bat, Rabbit, Giraffe, Camel, Horse, Elephant, Mammoth
Whale, Dolphin, Walrus, Seal, Polar Bear, Bear, Cat, Tiger, Lion, Dog, Wolf
Monkey, Chimpanzee, Human
These are organized by a classification scheme developed exclusively for Cosma. More…
aquatic : growing or living in or frequenting water — Webster
Aquatic ecosystem An aquatic ecosystem is an ecosystem in a body of water. Communities of organisms that are dependent on each other and on their environment live in aquatic ecosystems. The two main types of aquatic ecosystems are marine ecosystems and freshwater ecosystems. — Wikipedia
Marine biology is the scientific study of marine life, organisms in the sea. Given that in biology many phyla, families and genera have some species that live in the sea and others that live on land, marine biology classifies species based on the environment rather than on taxonomy.
A large proportion of all life on Earth lives in the ocean. The exact size of this large proportion is unknown, since many ocean species are still to be discovered. The ocean is a complex three-dimensional world covering approximately 71% of the Earth’s surface. The habitats studied in marine biology include everything from the tiny layers of surface water in which organisms and abiotic items may be trapped in surface tension between the ocean and atmosphere, to the depths of the oceanic trenches, sometimes 10,000 meters or more beneath the surface of the ocean. Specific habitats include coral reefs, kelp forests, seagrass meadows, the surrounds of seamounts and thermal vents, tidepools, muddy, sandy and rocky bottoms, and the open ocean (pelagic) zone, where solid objects are rare and the surface of the water is the only visible boundary. The organisms studied range from microscopic phytoplankton and zooplankton to huge cetaceans (whales) 25–32 meters (82–105 feet) in length. Marine ecology is the study of how marine organisms interact with each other and the environment. — Wikipedia
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Sea Life News -- ScienceDaily Current events articles in marine biology and science. From beached whales to coral reef bleaching, learn what is happening in today's oceans.
Why deep oceans gave life to the first big,...
on December 12, 2018 at 6:43 pm
Why did the first big, complex organisms spring to life in deep, dark oceans where food was scarce? A new study finds great depths provided a stable, life-sustaining refuge from wild temperature swings in the shallows. […]
Coral larvae use sound to find a home on the reef
on December 12, 2018 at 5:18 pm
A new study is starting to unravel that mystery. Researchers found that the soundscape of a reef -- the combined sounds of all animals living nearby -- might play a major role in steering corals towards healthy reef systems and away from damaged ones. […]
'Eavesdropping' on groupers' mating calls key to...
on December 12, 2018 at 2:33 pm
Many fish produce sounds for courtship and mating, navigation, and defending their territories. Scientists analyze these sounds to study their behavior such as reproduction. Since grouper spawning is brief and it takes them a long time to reach sexual maturity, they are vulnerable to overfishing. 'Eavesdropping' on them is key to their survival. Researchers have developed a novel acoustic monitoring technique to classify grouper species by their sounds or 'grouper calls,' with accuracy of about […]
Secrets of iron storage in algae
on December 12, 2018 at 2:33 pm
New research shows that phytoplankton iron storage strategies may determine which species thrive in changing oceans and impact marine food webs, according to a recent article. The research examined two primary methods of iron storage and found that one makes species more resilient against shortages of the rare and essential element. […]
Did supernovae kill off large ocean animals at...
on December 11, 2018 at 4:29 pm
The effects of a supernova -- and possibly more than one -- on large ocean life like school-bus-sized Megalodon 2.6 million years ago are detailed in a new article. […]
Phys.org - latest science and technology news stories Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine.
Hypoxic dead zones found in urban streams, not...
on December 11, 2018 at 7:56 pm
Hypoxic dead zones, which occur when dissolved oxygen levels in water drop so low that fish and other aquatic animals living there suffocate, are well-documented problems in many coastal waters. […]
Researchers find unexpected impact of hurricanes...
on December 10, 2018 at 5:13 pm
Researchers at the University of New Hampshire have found unprecedentedly high levels of nitrate, an essential plant nutrient, in streams and watersheds of Puerto Rico for a year after two consecutive major hurricanes in 2017. This high amount of nitrate may have important climate change implications that could harm forest recovery and threaten ecosystems along Puerto Rico's coastline by escalating algal blooms and dead zones. […]
One out of three rivers in the Iberian Peninsula...
on December 7, 2018 at 3:10 pm
One out of three rivers in the Iberian Peninsula are highly salinized mainly due the impact of agricultural activity and urbanization. This environmental problem will affect hydric ecosystems due global warming, the growing use of water and the exploitation of soil natural resources. […]
229 new species described by the California...
on December 5, 2018 at 6:24 pm
In 2018, researchers at the California Academy of Sciences added 229 new plant and animal species to our family tree, enriching our understanding of Earth's complex web of life and strengthening our ability to make informed conservation decisions. The new species include 120 wasps, 34 sea slugs, 28 ants, 19 fish, seven flowering plants, seven spiders, four eels, three sharks, two water bears, one frog, one snake, one seahorse, one moss, and one liverwort plant. More than a dozen Academy […]
River deep: Einstein's contribution to earth...
on December 5, 2018 at 2:18 pm
Albert Einstein is famous for a lot of reasons, but the movement of sediments in rivers is perhaps not one of them. Yet, his name is associated with those of Ackers, White, and Shields who developed equations to help explain how grainy materials transported as particles in a river move. Given the importance of sediment from the physical or chemical degradation of rocks in a waterway and the impact they have on erosion, entrainment, transportation, deposition, and compaction, it is not […]