An investigation has been launched after two endangered New Zealand dolphins (also known as Hector's dolphins) were found in different locations on the country's South Island.
A humpback whale that has been feeding off the coast of south Devon had to be rescued on Wednesday after becoming entanged in fishing gear, possible ropes from crab or lobster pots, which were wrapped around the whale's tail.
The whale has been in the area for most of the month, attracting visitors to the area to see this rare visitor to the south coast. A rescue team from British Divers Marine Life Rescue successfully cut the whale free with assistance from rescue teams from the RNLI.
The growing numbers of dolphins and porpoises washing up dead on the south west coast of the UK is continuing to cause concern.
Over 100 have been reported dead on beaches in Cornwall and in fishing boat nets in eight weeks, according to the Cornwall Wildlife Trust, bringing the toll for last year to 205.
At least ten dead dolphins have been washed up on beaches in the West Country in the past couple of weeks.
It is unclear what is behind the recent strandings, but potential causes include illness, the effects of pollution and entanglement in fishing nets. In recent years, the local fishing community has trialed using pingers on nets which emit a sound to try and keep dolphins away.
According to the Cornwall Wildlife Trust, 61 whales, dolphins and porpoises were found dead around the local coastline in the first three months of 2016, the highest number since 2006.
Sri Lanka Fisheries Minister, Mahinda Amaraweera has ordered the Sri Lankan navy and coastguard to take legal action against fishermen killing dolphins and small whales in the waters off Mirissa, southwest of the island. He has also instructed police to arrest those found selling whale or dolphin meat at local markets.
WDC is extremely concerned after two North Atlantic right whales were found dead and a third had to be rescued after getting caught up in fishing gear in recent days.
Only around 500 of the endangered creatures survive so to lose two, one of which was just reaching breeding age, is devastating.
One of the dead whales had been entangled in fishing gear, which poses a major threat to the ability of this species to recover. It is unclear what caused the death of the other whale.