Harlequinmania

Sharks are unable to distinguish colors, even though their close relatives rays and chimaeras have some color vision, according to new research by scientists in Australia. Their study shows that although the eyes of sharks function over a wide range of light levels, they only have a single long-wavelength-sensitive cone type in the retina and therefore are potentially totally color blind. View the full article

Kindle and Nook / Sony eReader editions are now available for this issue! View the full article

Sakhalin Energy Investment Company -- part owned by Shell -- has announced plans to build a major oil platform near crucial feeding habitat of the Western North Pacific gray whale population. Only around 130 whales of the critically endangered Western population exist today, and their primary feeding habitat -- off Sakhalin Island in the Russian Far East -- is already besieged by multiple oil and gas exploration and development projects. View the full article

In this episode, expert fishbreeder Brian Taimuty gives Advanced Aquarists' viewers invaluable information on successfully keeping Discus fish. View the full article

After all, many (but certainly not all) are quite hardy and easy to care for, and many are attractive and/or have interesting behaviors. This is especially so when it comes to some of my personal favorites, the shrimp gobies. View the full article

Mike shares his gorgeous 155 gallon non-photosynthetic tank with us this month. View the full article

Terry discusses this month's issue. View the full article

Water motion is an extremely important consideration in the husbandry of reef aquaria, yet there are no inexpensive measuring devices on the market. This article will tell how to estimate water motion using a relatively low-cost method. Interpreting the results will also be discussed. View the full article

It is hoped that this article not only serves as a useful guideline for locating, harvesting, and maintaining specimens for the home aquarium, but furthermore adequately promotes the return of these beautiful creatures to their rightful place of eminence in the marine aquarium hobby. View the full article

An 18-year study of Kenya's coral reefs has found that overfished reef systems have more sea urchins -- organisms that in turn eat coral algae that build tropical reef systems. View the full article

Over a ten year period, flipper-banded penguins have a 16% lower survival rate and produce 39% fewer chicks than non-banded birds, new research shows. View the full article

An 18-year study of Kenya's coral reefs has found that overfished reef systems have more sea urchins -- organisms that in turn eat coral algae that build tropical reef systems. View the full article

Over a ten year period, flipper-banded penguins have a 16% lower survival rate and produce 39% fewer chicks than non-banded birds, new research shows. View the full article

Hi guys, Putting this lovely Juv Cotrez angel for sales since i afraid that it may not be able to withstand being bullied by all my other angel fish for long. As a juveniles, they exhibit dark black bodieswith yellow and blue stripes running vertically and going from their mouth downto their tail fins. feature a very distinct yellow strip. Have quarantine and stabilize the fish for about 3 week now in my office quarantine tank prior introduction to my main tank , and been feeding very well on pallets or frozen food. Letting go @ $130.00 Viewing / collection in CCK. ** Photo shown below is extracted from the internet, but it is exactly the same as what i got. I will go back and take some photo tonight.

Researchers report that they are the first to show in molecular detail how one gene evolved two competing functions that eventually split up -- via gene duplication -- to pursue their separate destinies. The study validates a decades-old hypothesis about a key mechanism of evolution. The study also confirms the ancestry of a family of "antifreeze proteins" that helps the Antarctic eelpout survive in the frigid waters of the Southern Ocean. View the full article

Selling this coral which has been with me for quite some time. Looking to let go at $80.00 Deal in CCK ave 3. please PM to deal thanks Below photo borrow from the internet but it is exactly the same as what i am having.

When different species of seabirds share a habitat with limited sources of food, they must differ in their feeding habits. This specialization is known by biologists as an ?ecological niche?. Researchers have investigated how flexible these ecological niches really are. They discovered that the preying habits of diving seabirds are very different, both in location and timing, within species as well as between different species. View the full article

A SCUBA expedition in Australia and New Zealand to find the rare embryos of an unusual shark cousin enabled American and British researchers to confirm new developmental similarities between fish and mammals. The study confirms that organisms separated by hundreds of millions of years of evolution share similar genetic programs for body formation. View the full article

Large hypoxic zones low in oxygen long have been thought to have negative influences on aquatic life, but a new study shows that while these so-called dead zones have an adverse affect, not all species are impacted equally. View the full article

In the vast ocean where an essential nutrient -- iron -- is scarce, a marine bacterium that launches the ocean food web survives by using a remarkable biochemical trick: it recycles iron. View the full article

Large hypoxic zones low in oxygen long have been thought to have negative influences on aquatic life, but a new study shows that while these so-called dead zones have an adverse affect, not all species are impacted equally. View the full article

Persistence paid off for a paleontology researcher, who after months of pondering the origins of a fossilized jaw bone, finally identified it as a new species of pterosaur, a flying reptile that lived 70 million years ago. View the full article

Geologists have a cautionary tale: Lose enough species in the oceans, and the entire ecosystem could collapse. Looking at two of the greatest mass extinctions in Earth's history, the scientists attribute the ecosystems' collapse to a loss in the variety of species sharing the same space. It took up to 10 million years after the mass extinctions for the ecosystem to stabilize. View the full article

Geologists have a cautionary tale: Lose enough species in the oceans, and the entire ecosystem could collapse. Looking at two of the greatest mass extinctions in Earth's history, the scientists attribute the ecosystems' collapse to a loss in the variety of species sharing the same space. It took up to 10 million years after the mass extinctions for the ecosystem to stabilize. View the full article

Wow awesome with 4ft height tank i was wondering how did he scape the coral to the rocks ? Maybe dive in ?