It also believes excessive noise is seriously interfering with cetaceans' ability to communicate with each other.
BBC: NEWS | Science/Nature | The deafening sound of the seas
Writing in the Royal Society's journal Proceedings B, the scientists say other cetaceans may show the same ability.
Like all of the toothed cetaceans, it hunts and locates using sound.
Harbour porpoises, one of the world's smallest cetaceans, are also in danger.
But strapping on a snorkel and paddling amongst these majestic cetaceans is something else entirely, particularly when a mother and calf are nearby.
It has diverse ecosystems with many marine and coastal species of seagrass, coral reefs, fish used both for consumption and for sale, sea birds, turtles, cetaceans, and mangroves.
It is home to great biodiversity in terrestrial as well as in marine ecosystems, and is an important place for the reproduction of sea turtles, seabirds and cetaceans.
It says there is evidence that noise is causing hearing loss in cetaceans (whales, dolphins and porpoises), injuring them and causing them to strand themselves, and is sometimes killing them.
BBC: NEWS | Science/Nature | The deafening sound of the seas
To understand how the pygmy whale fit into the lineage of whales, Marx and his colleagues carefully analyzed the skull bones and other fossil fragments from pygmy right whales and several other ancient cetaceans.
Many cetaceans are among the apex predator species first to go from an area if things are not right, so if we can protect whales and dolphins, we know we are on the right road.
Comparing the 1991 data with information gathered for the year 1800, prior to the age of steam and mechanisation in the fishing industry, showed up clear reductions in the numbers of cod, haddock, saithe, cetaceans and seabirds.
BBC: The model should aid future management of the North Sea
Dr Wiley also helped to develop a new iPad application that gives real-time information on the location of whales across the entire East Coast of America so that ships can avoid the large gatherings of the cetaceans.
"As this is a new technology, we do not know its full environmental impacts, for example on large marine animals like seals and cetaceans, and seabed species and habitats located downstream of the proposal in the lough, " she said.
BBC: NEWS | UK | Northern Ireland | Sea power to provide electricity
As government delegates, scientists, whale-hunters and environmentalists discuss the large ocean-traversing cetaceans at the International Whaling Commission (IWC) meeting here, green group WWF's new report, The Forgotten Whales, concludes that some of the leviathans' smaller brethren are more at risk.
Every moment spent on what a quorum means is a moment less that can be used to discuss substantive issues that are already struggling to get a decent hearing, such as the growing impact of ocean noise on cetaceans and the implications of climate change.
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