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Amazing underwater video shows a whale using bubble nets as hunting traps

Did you know that some cetaceans use “nets” to catch their food? A good example is humpback whales or yubartas, whose size can reach 16 meters long. These whales dive and swim in circles around their prey, blowing bubbles as they do. The underwater footage shows a whale using bubble nets

whale using bubble nets

The resulting structure emerges forming a column of fish traps, allowing other members of the group to swim from below, with their mouths open, through the cylinder of bubbles to enjoy a delicacy.

The scene is captivating and fascinating to watch, and now scientists have recorded it on camera from an unprecedented angle which clearly shows whale using bubble nets.

In addition to the aerial view provided by a drone, where one of these humpback whales is seen creating the bubble trap, marine biologists at the University of Hawaii in Mānoa mounted cameras and sensors on the animals, using suction cups to collect data about this fascinating behaviour.

«We have two angles. The drone view shows us the networks of bubbles and how they emerge to the surface, while the cameras in the whales show us everything from their perspective, ” explains marine biologist Lars Bejder . “Together they offer us amazing material.”

Migrating yubartas visit Alaska to feed during the summer, before returning to warmer waters near Hawaii for winter, where they reproduce and breed the calves. During this last period, the whales do not eat, so they need to store large reserves of Alaskan krill to support themselves.

What is fascinating about bubble networks as a method of feeding is that it seems to be a learned behavior. Not all humpback whales hunt in this way, and those that do have varied techniques. It is also a cooperative task, where these cetaceans work together to ensure that everyone receives their ration.

The number of humpback whales has increased after the 1985 commercial hunting ban, and they are no longer considered endangered. However, in the last five years, there has been a substantial decrease in sightings of these animals. The research that recorded the videos is part of an attempt to find out why, the potential causes being changes in the food population, anthropogenic impact on their habitat and climate change.

“We are watching how these animals manipulate their prey and prepare them for capture. The films we achieve allow us to have data that we lacked before, ”concludes Bejder.

Source: ScienceAlert

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Planet Earth

In the Netherlands, people began to be buried in mushroom coffins

This accelerates the decomposition of the body several times.

In the Netherlands, you can continue to help the ecosystem after death by choosing a living mushroom coffin that accelerates the decay of your body. The coffin transforms corpses into compost, which enriches the soil thanks to mycelium.

The idea was coined by Bob Hendrix of the Delft University of Technology. According to him, such a “living cocoon” was the first in the world. 

“This is the world’s first ‘living’ coffin, and last Saturday a deceased person in the Netherlands was composted for the first time and brought back into the cycle of life”

Bob Hendrix

The coffin was the resting place of an 82-year-old woman whose body would decompose within two to three years. The decomposition process in a traditional coffin with lacquered wood and metal handles usually takes over ten years. 

The mushroom coffin itself decomposes within 30-45 days. According to Hendrix, mycelium is the most suitable material for environmentally friendly burial. 

The technology for the production of the coffin includes the collection of moss, the extraction of mycelium from the mushrooms and the addition of wood chips.

The resulting solution hardens in seven days, and then becomes activated again when moisture gets on it. According to Hendrix, this material is a complete organism. 

The bottom of the coffin is covered with moss, which has been added with various soil creatures. This further accelerates the decomposition of the body. 

Hendrix’s startup was named Loop. The scientist has already signed a contract with one of the funeral homes and expects that his work will be a great success. 

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Planet Earth

A tourist fell into a fire trap: published a creepy video from California

The video, which was filmed in the Sierra National Forest, located in California, shows how one of the holidaymakers was in the heart of a fire trap.

This vacationer turned out to be just one person out of 207 who were also captured in the fire and were saved in the very last moments. The rescue service came to their aid, which took people to a safe place. 

In the video, which was made by a man on the estate of Jeremy Remington, you can clearly see how cars burn, and the flame is getting closer to tourists and its speed is noticeably increasing.

People were in a real trap. Fire surrounded them on all sides, and the roads that could be driven were destroyed. According to the information provided by the Emergency Situations Department, work to rescue tourists began on Saturday evening and continued until Sunday morning. 

More than 20 people had to be transported to hospitals. Two of the victims were in critical condition and required immediate medical attention. At the same time, two people who were vacationing in the National Forest refused the proposed evacuation.

The scale of the wildfire that started on Friday is not too large. But at the same time, the fire managed to destroy more than 71 square miles of forest. By the middle of Saturday, due to the increase in the rate of spread of fire, a 7 times larger area was destroyed. 

On Sunday morning, it was possible to stop the fire by no more than 5%, so the work continued actively and further.

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Planet Earth

Great solar minimum and the onset of the Little Ice Age

Niels-Axel Mörner is the former head of the Department of Paleogeophysics and Geodynamics at Stockholm University. He retired in 2005 and has since dedicated his days to refuting the global warming bullshit as well as warning of an impending Great Solar Minimum.

From 1997 to 2003, Moerner led the INTAS project on geomagnetism and climate. The project concluded that in the middle of the 21st century we should return to a new solar minimum with climatic conditions of the Little Ice Age.

In 2015, Moerner’s study “Approaching New Great Solar Minimum and Climatic Conditions of the Little Ice Age” was published. 

The conclusions are that by 2030–2040 the Sun will experience a new large solar minimum. 

During the previous large solar minima – the Sperer Minimum (1440-1460), the Maunder Minimum (1687-1703), and the Dalton Minimum (1809-1821) – climatic conditions worsened and the Little Ice Age began.

During the last three large solar minimums – the Sperer, Maunder and Dalton minimums – the global climate has experienced Little Ice Age conditions. Arctic waters penetrated south as far as Central Portugal and Europe experienced harsh climatic conditions. The ice cover of the Arctic has expanded significantly.

We now have data indicating that by 2030-2040. A New Great Solar Minimum will come, which, by analogy with past minimums, will lead to a significant deterioration of the climate with the expansion of ice in the Arctic and global cooling.

All this excludes the theory of global warming, instead of warming, we will face a new Little Ice Age .

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