Yes, there are. One of the biggest is long-line drift-netting used for catching Tuna and similar fish. The dolphins become entangled and drown.
Some are injured or killed by collisions with boats, especially being struck by the rapidly-revolving propellors.
Others are said to be deafened by naval sonar, so they can't hunt their food; but this has been exaggerated and distorted, as no country's naval ships and submarines wander around "pinging" into the ocean like the soundtrack to a Hollywood film set in WW2. The major acoustic threat to marine animals is instead from the sound sources used by seismic-survey companies, and consisting of very loud underwater bursts rather like explosions.
Pollution of course can be another threat, in one way or another.
Yes, according to such geographically separated incidents as in the Black Sea and the Gulf of Mexico; and according to the fact-finding and research of the National Marine Fisheries Service, the Virginia Marine Science Museum, and the Woods Hole Oceanographic Institution. The danger increases in swims in the wild. In captive swim programs, the danger decreases as the dolphins have been trained, and are accustomed to regular interactions with people.
There are reports of dolphin attacks by captive dolphins and wild dolphins, These attacks include biting, ramming and sexual.Luckily fo r dolphins they have good PR and a "simile" that keeps their image as friendly critters.
Yes they are, people end up threatening dolphins often do not want to find it only by bunito, polluting their natural habitat and in other ways.
Young dolphins actually have an aggressive side. Dolphins are thought of as cute and fun, but humans should use caution around them.
They are hunted but it is soon to become illegal.
Sometimes and sometimes not.
good people
yes they are lovable but they can hurt people
There is no possible way that recycling would hurt dolphins. in fact, recycling helps dolphins.
no
There are no known attacks on people since dolphins eat small fish (compaired to our size) in deep waters and their intelligence allows them to better establish friend from foe. But, there probably has been some attacks from people wondering too close to their young.
They can confuse and hurt whales and dolphins in the ocean.
yes they pollute water and that kills bottlenose dolphins
Dolphins of any kind have never been known to hurt humans. There are actually recorded cases of them protecting humans from sharks.
That would be your opinion, but bottlenose dolphins are playful and curious and they do try to make friends with people. So, as long as you don't try to hurt one, they will not harm you, although accidents do happen and you should be careful.
k
Dolphins are endanger because the boats with sharp blades cut the dolphins or dolphins get stuck in a fisher's net the fisher men either free it leave it stuck or kill it or a man takes its gun and shoots it so that the dolphin does not get the fish before he does or people drop bad stuff in the ocean. Never do this thing to dolphins make notes to people and tell them to not hurt the dolphins never ever! Save the dolphins! Do not kill them!
Because they hit everyone with their bottles.