It is a smaller body
Marine mammals
The body is perfectly streamlined
The back is blue-black-grey
The abdomen is white
Loves group life
It is beautiful in shape
clever
Good frolicking
Known for being friendly to people
It is
The wise man of the sea , the dolphin
Jonas von Werne 摄
Animal ID card
Features: body length of more than 2 meters; love to live in groups; temperament is gentle, intelligent and sensitive
Living area: the world's oceans
Food: fish, shrimp, squid, etc
Animal profiles
Dolphins belong to the family Dolphins, and the Pilot Whales, Killer Whales, and Black Cetaceans also belong to this family, which are essentially large dolphins. The dolphin family evolved from the late Oligocene more than 20 million years ago, and there are about 37 species in 17 genera, which is the largest family of cetaceans, and the modern close relatives are porpoises and horned cetaceans, and the three families together constitute the dolphin family.
Source: Long Whale Groan
They have a well-developed sonar system, rely mainly on echo positioning function when active, and have excellent hearing in both water and air. The nostrils are on the top of the head and are used for outlet ventilation. The body size varies from 1 meter long and 30 kg weight (pygmy dolphin) to 9.5 meters long and 14 tons (killer whale), and morphological characteristics vary. They have complex brain grooves, good memory, and can learn many movements under human training, and are one of the most intelligent animal families.
killer whale
Mike Doherty 摄
You don't know about dolphins
Photo by Ranae Smith
Aquatic athletes
The dolphins we know as universal dolphins and bottlenose dolphins. Many writers have mentioned dolphins as child mounts or rescuers of people who have fallen into the water, these are these two species.
Yale Cohen 摄
bottlenose dolphin
Dolphins are aquatic athletes. If we humans do not wear wetsuits, we can only dive up to 30 meters underwater, while dolphins have a diving record of 300 meters, which is 10 times the depth of human diving. Their swimming speed is even more amazing, swimming about 15 meters per second, and they can catch a medium-speed torpedo.
Intelligent animals
The dolphins participating in the performance can do arithmetic and even play table tennis, which is really excellent. Dolphins' cleverness is based entirely on their complex brain grooves. Dolphins account for 1.17% of their own body weight, and in the animal kingdom, they belong to high IQ. Their memory and reflexes are extremely strong, and they can naturally practice many skills.
Silviu Georgescu 摄
Amazing listening
Experiments have been conducted to blindfold dolphins and muddy the water, but dolphins, with their amazing hearing, can still find food accurately and quickly. Their ears can not only measure the distance, direction and location of food, but also can distinguish the shape and nature of food, which is really magical.
A close friend of humanity
Docile dolphins are very willing to get close to people. They are even friendlier to humans than dogs and horses. They are willing to play and play with people. When swimming in the sea, if they happen to encounter a human who accidentally falls into the water, they will pick it up and send it to the shore.
Sung Jin Cho 摄
Dolphin Fun Facts
There are many legends about dolphins, and some of them are true. For example, the Greek historian Rotusto recorded an incredible story in his book The Legend of Arion: Arion was a famous lyric poet and musician living on the island of Lesborg in the 6th century BC, who, after touring Italy, took a large amount of money and took a boat to return to Colintown, on the way, the sailors saw the money and tried to kill them. At that time, Arian asked him to sing another song, and the sailors agreed. Who knows, his beautiful song has attracted countless sea beasts. After he was thrown into the sea, one of them drove him all the way to the shore. This mysterious animal is the famous dolphin.
The mount of the gods, the ancient legend of the dolphin
The ancient Greeks were so fond of dolphins that they believed that seeing the white waves of dolphins jumping out of the water around the ship symbolized good luck coming; in Greek mythology, dolphins also appeared frequently - the most famous is the story of the bard Arion and the dolphin.
Arión, the son of Poseidon, was robbed by sailors in a boat and eventually forced to jump into the sea, and when he was about to drown, Arion opened his mouth and sang a song. A dolphin, touched by Arion's beautiful singing, swung its tail fins to swim to his side and rescue him ashore.
An ancient silver coin in the shape of a riding Arian
Image source: Network
To this day, in the Temple of Poseidon in Greece, there is a statue of Arion riding a dolphin, and the sacred beast symbolizing poseidon, the god of the sea, also happens to be a beautiful dolphin. In addition, in the Palace of Nossos in Crete, beautiful dolphins can be seen everywhere in the huge murals.
Dolphin murals in The Palace of Nosos
protection
Due to the extremely wide distribution of dolphins
There are many kinds
Scientists have never been able to give
The exact data counts their existing quantities
But we can't be blindly optimistic
Back in 2008
This is what the IUCN survey report shows
About a quarter of the whales and dolphins are extant
All are under existential threat to varying degrees
Even facing extinction
Pascal van de Vendel 摄
Dolphins are large carnivores
At the top of the food chain
Except for the more ferocious sharks
Other marine life is largely non-threatening
It can be said that dolphins face such a survival dilemma
The biggest driving force behind the scenes is still humans
Although dolphins are in very rare times
It also attacks people
But this is the same as the slaughter of them by the hunters
Simply can't compare
Some places even have a "Dolphin Killing" festival
Dolphins slaughtered every year around the world
Tens of thousands
Claude Sanders 摄
Since January 2019
There have been 1,100 dolphin carcasses
Washed up on the Atlantic coast of France
The bodies of these dolphins are mutilated
The double fins were cut off
Appalling
The number in 2018 has increased compared to 2017
Even the highest in 40 years
90% of dolphin deaths are caused by entanglement in industrial fishing nets
The cause of the death surge remains a mystery
In 1988
All species of the dolphin family are included
List of Wild Animals under National Key Protection
Among them, the Chinese white dolphin is a national first-class protected animal
Other dolphins are national grade II protected animals
These spirits of the sea need our protection
Jeremy Bishop 摄
Various damaged creatures
All need our protection
It's just about protecting dolphins
It always allows us to see more humanity
Dolphins in ancient Greek are "δελφίς"
Meaning "soul in the sea"
I wish the soul of the sea
Be able to swim in the sea forever
Mind and body
What about you
Photo by Ishan @seefromthesky
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(The content of this article is based on Baidu Encyclopedia, Animal Encyclopedia, etc. See watermark for picture sources)