Extremely Rare Giant Oarfish Caught on Camera in Gulf of Mexico

The giant oarfish Regalecus glesne has been caught on film in the deep waters of the northern Gulf of Mexico.

The giant oarfish, also known as the king of the herring, Pacific oarfish, ribbon-fish, and streamer fish, was originally described by the Norwegian biologist Peter Ascanius in 1772.

Regalecus glesne is the longest bony fish alive. It can reach a length of over 50 feet and weigh as much as 600 pounds.

The generic name Regalecus is derived from the latin word regalis, meaning ‘royal.’ The origin of the oarfish name is unknown, but may refer to the oar-shaped body or the long, oar-like pelvic fins.

Regalecus glesne is a pelagic species found living at great depths to 3,280 feet (1 km), but more typically to depths of 656 feet (0.2 km) throughout the deep seas of the eastern Atlantic Ocean and Mediterranean Sea.  Read more.

Source: Sci-news

1 year ago 17 notes

Plants re-grow after five centuries under the ice

While monitoring the retreat of the Teardrop Glacier in the Canadian Arctic, scientists have found that recently unfrozen plants, some of which had been under ice since the reign of Henry VIII, were capable of new growth.

While in the field, the researchers from the University of Alberta discovered that the receding ice—which has doubled from 2 meters per year in the 1990s to 4.1 meters per year in 2009—had uncovered lots of mosses and other non-vascular plants, including more than 60 plant species. Upon careful examination, the scientists were impressed by how well preserved the delicate bodies were; the stems and leaf structures were perfectly intact, although some of them were only one-cell layer think. Using radiocarbon dating, they determined that those plants have been frozen for 500 years since the Little Ice Age when the glacier was at its maximum.

The most surprising thing, however, was that many of the plants were showing signs of life: they had green tips and fresh off-shoots, even though they have only been ice-free for less than a year and were just a few centimeters away from the glacier margin.
More.

1 year ago 1,918 notes

Bio-Observer" by Maker horseboy on DIY.

A description of the project from the Maker: 

bottles reused for caterpillars. theywill make cocoons to live through winter. in spring i will put them outside and i hope they will still be there and become butterflies. the bottles are cut in two and the top is put upside down in the bottom. there is earth in the bottom and the leaves of the plant that these caterpillars eat. i have three bottles, they are 3 different butterflies so 3 different kinds of plants. my mum helped me look up the kinds of caterpillars on a special website and i looked on wikipedia to find out more about the host plants.

1 year ago 19 notes

thescienceofreality:

Thriving since 1960, my garden in a bottle: Seedling sealed in its own ecosystem and watered just once in 53 years.

To look at this flourishing mass of plant life you’d think David Latimer was a green-fingered genius. Truth be told, however, his bottle garden – now almost in its 53rd year – hasn’t taken up much of his time. In fact, on the last occasion he watered it Ted Heath was Prime Minister and Richard Nixon was in the White House.

For the last 40 years it has been completely sealed from the outside world. But the indoor variety of spiderworts (or Tradescantia, to give the plant species its scientific Latin name) within has thrived, filling its globular bottle home with healthy foliage.

The bottle garden has created its own miniature ecosystem. Despite being cut off from the outside world, because it is still absorbing light it can photosynthesize  the process by which plants convert sunlight into the energy they need to grow.”

So how does it work exactly?

Bottle gardens work because their sealed space creates an entirely self-sufficient ecosystem in which plants can survive by using photosynthesis to recycle nutrients.

The only external input needed to keep the plant going is light, since this provides it with the energy it needs to create its own food and continue to grow.

Light shining on the leaves of the plant is absorbed by proteins containing chlorophylls (a green pigment).

Some of that light energy is stored in the form of adenosine triphosphate (ATP), a molecule that stores energy. The rest is used to remove electrons from the water being absorbed from the soil through the plant’s roots. Read more…

1 year ago 17,587 notes

Biologists will often use dyes to make the objects they study easier to see. Use food dye to see how plants get the water and nutrients they need through tiny tubes that use capillary action.  

1 year ago 130 notes