bnn.lv Latviski   bnn-news.com English   bnn-news.ru По-русски
Monday 23.01.2017 | Name days: Strauta, Grieta

Seven animals with the best eyesight in the world

FaceBook
Twitter
Draugiem
print
(No Ratings Yet)

Baltic news, News from Latvia, BNN.LV, BNN-NEWS.COM, BNN-NEWS.RUThe human eye is an impressive organ. Those who oppose the idea of evolution have even said that the eye is too complex an organ to have had developed as a result of evolution. But is that how it really is? Human eyesight is impressive, but there are animals in the world with even better eyesight.

National Geographic has compiled a list of animals that can see farther, clearer and faster than us:

Sharpest eyesight – birds of prey

Eagles, hawks and buzzards have eyesight that is 3-4 times sharper than ours. Eagles can spot rabbits from a distance of several kilometres. Hawks and buzzards survey the ground from up to 15 km altitude, looking for prey. Once the prey is spotted, these birds are able to charge at the speed of more than 100 m/sec without losing focus on the target.

Best eyesight at night – owls

Owls’ eyes are just as big as our eyes. Their enormous pupils can perceive a lot of light. Owls can spot a mouse on a football field even is the only source of light is a single candle. But because owls eyes are so big and are always turned to the front, these birds cannot move them. To compensate for this limitation, these birds are able to turn their heads 270 around.

Best underwater eyesight – sharks

Sharks can spot light that is ten times dimmer than what we can see. On top of that, sharks have special cells in their brains that sense electrical fields. It not only allows them to find their way in water without a compass, but also allows them to sense weak electrical fields created by even the slightest muscle movements of their prey.

Best ‘thermal’ sight – snakes

Organs sensitive to thermal changes, located in the section between eyes and nose, allows pythons, boa constrictors and vipers to sense the warms coming from their prey. All snakes have this organ. Because of it, these reptiles can kill their pry with deadly precision even when it is completely dark.

Best eyesight at night among mammals – cats

Cats have incredible eyesight at night. This is because the pupils of their eyes can expand to a large size, greatly enhancing their ability to hunt in the dark. This is very bad news if you are a mouse!

Best motion detection – insects

While humans have only one lens in each eye, insects can have hundreds. Eyes with a structure like that are called complex eyes. Instead of seeing a single clear picture, eyes of insects show a tiny fraction of the whole picture. Although our eyesight is much better than most insects, their eyes are much better at detecting motion.

Herbivore mammals can see almost everything around them.

Mammals, especially horses, gazelles and zebras have to be on alert all the time to avoid being eaten. If these mammals had their eyes located facing the front of their heads, like we do, they would be preyed upon without end. However, the eyes of herbivores are located on the sides of their heads let them see what goes on around them.

Ref: 102.109.109.5886


Leave a reply

Week in Lithuania. CIA declassifies document on Lithuania’s post-WWII guerrillas

A report about guerrilla fighting against the Soviet occupation after World War II is among hundreds of thousands of declassified documents published online by the United States Central Intelligence Agency.

People no longer believe in their own country, because they associate it with people who make decisions

The biggest threat to Latvia is the fact that society, including state officials, is afraid. People are afraid of change, afraid of voicing their thoughts (thoughts that often do not comply with the politically correct stance), afraid of being misunderstood. Fear makes it harder to develop. It limits people’s internal freedom. Such is the opinion Inga Antane, president of Baltic Association – Transport and Logistics and sworn attorney of Triniti law firm, explained in her interview to Atbalsts.

Expert: «Lithuania’s renewed National Security Strategy is a «hodgepodge»

This week, the Lithuanian Parliament has overwhelmingly approved a renewed National Security Strategy, laying out 14 major hazards and risk factors to national security.

Industry: advertisements contribute the entire economy of the European Union

Every euro invested in advertisement has seven times the influence on a country’s GDP. Every one euro brings seven euros in return to the country’s GDP, as emphasized by Latvian Advertising Association, noting that advertisement sector contributes to employment in all of the European Union.

Six deputies applied with administrative penalties in Saeima’s autumn session

According to information provided to the parliament, six deputies were applied with administrative penalties during Saeima’s autumn session.

Slower economic growth for Estonia forecast – at 2.2% - for 2017

The economic growth of Estonia in 2017 will be slower than previously expected, Swedbank economists have announced lowering their previous economic forecast for the Baltic country by 0.2% to 2.2%.

Latvian and Lithuanian authorities dismantle two criminal groups

Latvian State Revenue Service’s Finance Police has successfully apprehended two organized crime groups that caused significant damage to the state budget in 2015 and 2016 by realizing different VAT fraud schemes.

Estonia to drop special pensions, push forward sweeping pension reforms

The Estonian government has decided to drop special pensions and to push forward with plans regarding other significant changes in the pension system, including tying the retirement age to the average life expectancy.

KNAB performs inspection about Jakrins’ approval in the board of Rīgas satiksme

Corruption Prevention and Combating Bureau intends to inspect if the approval of acting head of Riga City Council’s Transport Department Emils Jakrins in the management board of Rīgas satiksme had any signs of breach of good management principles.

Chinese GDP up 6.7% in 2016

World’s second largest economy has seen a 6.7% growth in 2016, Chinese official data show, which indicate that the gross-domestic-product increase has been slower than the 6.9% seen in 2015 and the slowest since 1990.

Dozens buried in Italy’s avalanche-stricken hotel

Italy has been shaken by a number of earthquakes this week, one of which has triggered an avalanche burying a mountain hotel, where at least two people have been found dead and dozens more a searched for through rubble and snow.

Weekends to experience frost and thaw; drivers urged to be careful

Weather in Latvia will not be stable in the next couple of days – cloudy weather with some precipitation will be mixed with periods of clear sky, according to State Environmental, Geology and Meteorology Centre.

Logistics Industry Council assesses results of 16+1 summit

Experts say container cargoes have the potential to bring major contribution to the logistics sector. With that, LDz Logistics intends to continue organizing the next container train from China, as well as cooperate with partners from Belarus and China in the context of the Great Stone industrial park, as BNN was informed by Transport Ministry’s representative Ilze Greiskalna.

Parliament supports amendments to avoid expensive land-measuring actions

It will no longer be necessary to prepare land border plan for entry of land units in the Land Book. It will help save budget funds, as it will not be necessary to perform land-measuring actions, as reported by Saeima press-service.

CP supervisors concerned about Latvijas Gāze’s contract terms

The Competition Council is concerned about Latvijas Gāze’s behaviour in the process of liberalization of the country’s gas market. Economy Ministry has submitted a draft of the Gas Trade and Use Rules to the Cabinet of Ministers Committee for review.

Germany seeks clarity from Trump’s government, to boost military spending

Berlin has emphasised plans to increase defence spending after facing criticism from upcoming U.S. President Donald Trump on NATO countries not meeting their spending commitments.

Saeima re-elects Elita Krumina as State Auditor

On Thursday, 19 January, the Saeima re-elected Elita Krumina in the post of State Auditor.

Saeima supports formation of aircraft passenger data registry to combat terrorism

On Thursday, 19 January, Latvia’s Saeima approved the Aircraft Passenger Data Processing Law in the final reading. This will form the passenger data registry.

Milk retail price in Estonia reaches 55 cents per litre after to price hikes

After a long period of low milk purchase prices in Estonia, milk retail prices in the Baltic country have increased twice, reaching the point where famers receive just enough to cover milk production costs.

Ventspils Freeport carries Lembergs around with luxurious car worth EUR 156,000

In spite of a 16.44% turnover decline, Ventspils Freeport bought a lux-class Audi A8L W12 for EUR 156,000 last year. It’s only known passenger so far has been the formally suspended chairman of Ventspils City Council Aivars Lembergs, as reported by Latvijas Avīze.

Estonia concludes bilateral defence framework deal with Finland

Estonia and Finland have signed a bilateral defence cooperation framework agreement aiming for closer and more regular cooperation in the field by the neighbouring countries.

Biden: Wealthiest 1% does not pay enough in taxes

The «top 1% is not carrying their weight», outgoing U.S. vice-president, Joe Biden evaluated at the World Economic Forum, insisting the world's wealthiest that they do not pay enough in taxes.

Latvia and Japan sign convention on attraction of foreign investments

In Tokyo, Latvian Finance Minister Dana Reizniece-Ozola and Japanese Foreign Ministry’s Parliamentary Vice-Minister Motome Takisawa signed a convention between the two countries on double taxation prevention for income tax.

FM: problems with real estate tax cannot be resolved with tax rate corridor

Real estate tax benefits for housing area could be applied for each person declared living in each respective house. Each benefit can be applied to the building and land, Finance Ministry’s representative Aleksis Jarockis reported on conclusions made by the work group responsible for amendments.

Turkey’s New Year’s terrorist admits choosing nightclub randomly

The main suspect of the attack in Istanbul, which left 39 people dead during New Year’s celebrations, had selected randomly the place of attack.

When do you pay fines for speeding?

View Results

Loading ... Loading ...

Polls Archive



Category feed: Feed: