Wszystkie wpisy, których autorem jest Łukasz Niedźwiadek

Narwhal

  Narwhals_breachIntroduction

The narwhal, is a medium-sized toothed whale and possesses a large „tusk” from a protruding canine tooth. It lives year-round in the Arctic waters around Greenland, Canada, and Russia.

Unicorn of the seaHI_232821_Paul_Nicklen_National_Geographic_Stock_WWF_Canada

The narwhal is the unicorn of the sea, a pale-colored porpoise found in Arctic coastal waters and rivers. These legendary animals have two teeth. In males, the more prominent tooth grows into a swordlike, spiral tusk up to 2.7 meters long. The ivory tusk tooth grows right through the narwhal’s upper lip. Scientists are not certain of the tusk’s purpose, but some believe it is prominent in mating rituals, perhaps used to impress females or to battle rival suitors. Females sometimes grow a small tusk of their own, but it does not become as prominent as the male’s.

Narwhal travels

4Narwhals are related to bottlenose dolphins, belugas, harbor porpoises, and orcas. Like some other porpoises, they travel in groups and feed on fish, shrimp, squid, and other aquatic fare. They are often sighted swimming in groups of 15 to 20, but gatherings of hundreds or even several thousand narwhals have been reported. Sometimes these groups become trapped by shifting pack ice and fall victim to Inuit hunters, polar bears, or walruses.

Why people hunt for narwhals ?

o-NARWHAL-facebookInuit people hunt the narwhal for their long tusks and their skin, an important source of vitamin C in the traditional Arctic diet. They are allowed to hunt this whale species legally for subsistence. Narwhals have been extensively hunted the same way as other sea mammals, such as seals and whales, for its large quantities of fat which are one of the most important resources of the native people in Arctic regions. Almost all parts of the narwhal, meat, skin, blubber and organs are consumed.

Portuguese man o’ war

Why „Man o’ war” ?

The name „man o’ war” comes from the man-of-war, an 18th-century armed sailing ship,and the cnidarian’s supposed resemblance to the Portuguese version at full sail. In other languages it is simply known as the ‚Portuguese war-ship.

Not a Jellyfish ?

giant06-man-o-war_17455_990x742 Anyone unfamiliar with the biology of the venomous Portuguese man-of-war would likely mistake it for a jellyfish. Not only is it not a jellyfish, it’s not even an „it,” but a „they.” The Portuguese man-of-war is a siphonophore, an animal made up of a colony of organisms working together.

The longest colony on the world

The tentacles are the man-of-war’s second organism. These long, thin tendrils can extend 165 feet (50 meters) in length below the surface, although 30 feet (10 meters) is more thexxport-1average. They are covered in venom-filled nematocysts used to paralyze and kill fish and other small creatures.

Deadly Venom

This species and the smaller Indo-Pacific man o’ war are responsible for up to 10,000 human stings in Australia each summer, particularly on the east coast, with some others occurring off the coast of South Australia and Western Australia. For humans, a man-of-war sting is excruciatingly painful, but rarely deadly. But beware—even dead man-of-wars washed up on shore can deliver a sting.

Real Portuguese sailor

640px-Portuguese_Man-O-War_(Physalia_physalis)Man-of-wars are found, sometimes in groups of 1,000 or more, floating in warm waters throughout the world’s oceans. They have no independent means of propulsion and either drift on the currents or catch the wind with their pneumatophores. To avoid threats on the surface, they can deflate their air bags and briefly submerge.

Sailfish

Introduction

9546-050-42565668Sailfish are a genus Istiophorus of billfish living in warmer sections of all the oceans of the world. They are predominately blue to gray in colour and have a characteristic erectile dorsal fin known as a sail, which often stretches the entire length of the back. Another notable characteristic is the elongated bill, resembling that of the swordfish and other marlins. They are therefore described as billfish in sport-fishing circles.

Species

Two sailfish species have traditionally been recognized.sailfish-mexico

-Atlantic sailfish                                                   -Indo-Pacific sailfish

Description

Sailfish grow quickly, reaching 1.2–1.5 m in length in a single year, and feed on the surface or at middle depths on smallerpelagic forage fish and squid. Individuals have been clocked at speeds up to 110 km/h, which is one of the highest speeds reliably reported in any water organism. Generally, sailfish do not grow to more than 3 m  in length and rarely weigh over 90 kg.

Pacific-sailfishSail

Its shape resembles a large sail, hence the common name of the species. Fin may be made by the fish back in the oblong hole. During the fight it is rigidly set, sometimes issued over the water surface.

Sperm Whale

Introduction

The sperm whale (Physeter macrocephalus), or cachalot, is the largest of the toothed whales and the largest toothed predator. It is the only living member of genus Physeter, and one of three extant species in the sperm whale family.

Sizekaszalot 3

The sperm whale is the largest toothed whale, with adult males measuring up to 20.5 metres long and weighing up to 57,000 kilograms. By contrast, the second largest toothed whale, Baird’s Beaked Whale measures 12.8 metres (42 ft) and weighs up to 14,000 kg.

Diet

Sperm whales usually dive between 300 to 800 metres , and sometimes 1–2 kilometres to search for food. Such dives can last more than an hour. They feed on several species, notably the giant squid, but also the larger colossal squid, octopuses, and diverse fish like demersal rays, but the main part of their diet consists of medium-sized squid. Some prey may be taken incidentally while eating other items.

kaszalot 1Teeth

The sperm whale’s lower jaw is very narrow and underslung. The sperm whale has 18 to 26 teeth on each side of its lower jaw which fit into sockets in the upper jaw. The teeth are cone-shaped and weigh up to 1 kilogram (2.2 lb) each. The teeth are functional, but do not appear to be necessary for capturing or eating squid, as well-fed animals have been found without teeth or even with deformed jaws.

Existence

Sperm whales live in oceans and most seasOften in areas of giant squidWater prefertropical and subtropical zonesAdult males go on the journey to the polar zonesIn the 1980s,   3/4 of the population of sperm whales dwelled in the southern hemispher .

Brain

The brain is the largest known of any modern or extinct animal, weighing on average about 7.8 kilograms, more than five times heavier than a human’s, and has a volume of kaszalot 2about 8,000 cm3. Although larger brains generally correlate with higher intelligence, it is not the only factor. Elephants and dolphins also have larger brains than humans.

Day 13 – Grand Canyon National Park

After a walk in Las Vegas we wanted very much to go to the largest Canyon in the worldtheGrand Canyon National ParkTo get there we had to ride in the car about 9 hours

After reaching the placewe have read with the mapand we plan to explore this wonderfulplaceAt the beginning we went to the place from which yocan watch the entire Canyon.When I approached I saw the fault about kilometre down and at the end was River Colorado

Then walked around the edge of the Canyonlooking at viewwho represented Canyon.During this we went to several stores to buy something to drinkUnfortunatelydue to the every long journey we didn’t see as much as we wanted, but still according to me was brilliant.

Day 12 – Las Vegas

_DSC7643After passage through the Valley of death we went to Las VegasIt’s a huge city and also thecapital of gamblingwhich the whole world knows
When we drove into the city we looked at where we had to spend two daysAfterpodjechaniat the door we have received the keys and we went to the room to unpack andprepare for trips to the main street in Las Vegas
When the dusk sets out for a walk,because we wanted to see the neon signs and lights thatbeautifully looked after duskDuring the trip we saw in the shape of a castlethe towers ofthe Eiffel Towerthe statue of liberty and the largest hotel in the United States-GrandHotelAs I walked through the streetadmired the architecture in this beautiful city

That day there were few things to describe, but it was worth itAnd so ended up tiring day inLas Vegas._DSC7689_DSC7709

Day 11 – Death Valley National Park

Death valleyAfter a visit to the lake tacho we went on a long journey to capital of gambling Las Vegas. The route led through the hottest place on earth, that is, by Death Valley. Death Valley is a place located in a large valley. There has been reported the highest temperature in the world.

First we drove the whole way to the valley and stopped in front of the gate array. Even before entering we felt how hot it will be in the Death Valley Death Valley is really big but the reason  of that we really wanted to see many things in it, we had to ride in the heat a dozen kilometers in one place.Death_Valley_Devil's_Golf_Course_7-10-2012_13-32-12

The first place what we saw was a village where recorded the highest temperature in the world, the Furnace Creek. Measured temperature is 57.6 C. When we were there the air temperature was 41 C, and it was April ! Then we went to the Devil’s Golf Course. The name comes from the fact that the plain consisted of sharp salt stones. After seeing the Devil’s Golf Course we went still on Badwater Basin. It is a dry lake and at the same time the lowest point in the USA.

IMG_1763And, our wonderful adventure in Death Valley ended. It was nice to see many things in it and the lowest and hottest place in North America.

 

Day 10 – Lake Tahoe

_DSC7561 After a trip to the railway museum we went for a long journey through three states. The state of California, Nevada and Arizona. Our tour was supposed to have the three points where we had to stop and explore the treasures of the states. In the state of California we visited what is already told in previous entries. However, in the state of Nevada we visited the largest and deepest lake in Nevada.

Getting to Lake Tahoe took us a huge amount of time, but it was worth it. We saw the deepest lake in Nevada. When we arrived there, we went to the lake. As I learned later Lake Tahoe is so big and deep that taking water from his reservoir it would cover the surface of the entire state of California.

_DSC7566

When we were already at Lake Tahoe we were strollong at the beach of the lake. While we are walking along the lake, I found a large amount of pine cones that were larger than my fists. I saw that the water in the lake was crystal clear and clean, because the water in the lake was from the rocky Sierra Nevada mountains.

_DSC7571

Watching the the great and picturesque Lake Tahoe was really beautiful. That was the most landscaped lake I’ve ever seen. Thus ended our amazing adventure on the Lake Tahoe.

 

Day 9 – Railroad Museum in Sacramento

lokomotywa czarna

After trip to Sacramento, we decided to go back to this beautiful city once again, but this time to explore exciting Railroad Museum. Trains in the museum date back to 19th century.

After entering the large building made from red brick,  we bought tickets to the museum and for additional to movie about constructing,  huge route throughout united states. When we pass the gate at the checkout we saw at the beginning a small draisine.Then, we saw normal black trolley … but when we went around the corner , it turned out to be the great locomotive.

Ciuchcia

The locomotive has proved to be more than 20 meters long! It was the last steam locomotive produced in 1946. On the front of the train was the driver’s cab, next the mechanical part and engine, needed to propel the locomotive, and at the end of the coal carriage needed to power the locomotive.

After seeing the the locomotive from 1946 year and a few other locomotives we went to see a film about the creation of the interstate railway, which had run from the east coast to western. I don’t enjoy the film so much, but it’s maybe because I could not understand everything.

Wagon

After watching the movie we decided to _ see more carriages. We saw a sleeping carriage, dining and passenger carriage. And that was the end of our trip to Railroad Museum in Sacramento.