Skip to content
Amazon River dolphin (Boto)
All news
  • All news
  • About whales & dolphins
  • Corporates
  • Create healthy seas
  • End captivity
  • Green Whale
  • Prevent deaths in nets
  • Scottish Dolphin Centre
  • Stop whaling
  • Stranding
  • Whale watching

148 more fin whales killed in waters around Iceland

The Icelandic fin whaling season has now ended with a final, grim tally of 148...
Sperm whale underwater

Man arrested on suspicion of selling whale teeth

A man has been arrested by police in Oxfordshire following the discovery of a large...

Hundreds of whales killed as Norwegian hunt season ends

The end of the whaling season in Norway has been announced with 580 minke whales killed...

Third orca death in 18 months at theme park

Loro Parque tourist attraction in Tenerife, Spain has announced the death of Kohana, a 20-year-old...

River dolphins observed playing with anaconda

Researchers in Bolivia recorded an unusual interaction between local rivers dolphins and an anaconda snake last year in the Tijamuchi river.

The two species would not normally interact but on this occasion a group of dolphins, some of which appeared to be juveniles, were seen carrying the snake through the water. At times the dolphins were unusually holding their heads out of the water.

It is unclear if the snake was unwell or already dead but the long snouts of the dolphins, filled with small teeth used to catch fish, would seem to be an unlikely threat for a healthy snake. Anacondas belong to the boa family of snakes and catch their prey using constriction rather than venom. They spend a lot of their time in and around water. The Bolivian or Beni anaconda can grow to over four metres in length and weigh 35kg.

It is unclear what the purpose of these interaction was, it may have been that older dolphins were teaching the younger ones about their environment and it is also known that dolphin will often play with objects and other animals they find. The scientists also noticed a lot of sexual activity by the dolphins.

River dolphins in Bolivia are a sub-species of the Amazon River dolphin. All river dolphins are under threat from human activities.

Read the scientific paper at the Ecology Society of America website

About George Berry

George is a member of WDC's Communications team and website coordinator.

Leave a Comment