Showing posts with label Amazon Rainforest. Show all posts
Showing posts with label Amazon Rainforest. Show all posts

Wednesday, March 25, 2020

Pink River Dolphin

This week for reading we are doing another amazon jungle - based google drawing.
I chose the Pink river dolphin.
I found it hard to create the dolphin body.
I found it easy to find a diver.

Did you know that there is such a thing as a Boto dolphin? Maybe you know better as the Pink River dolphin, or an Amazon River dolphin. The Pink River Dolphin’s brain is 40% larger than a humans!
The Inia geoffrensis is a type of dolphin that lives in the Amazon. Boto dolphins prey on small river fish, krill, crabs, and even small turtles.


Where it swims, the trees are submerged in murky water because of the plantation. It doesn’t matter though, the Boto doesn’t even rely on its poor eyesight. You might notice its large bump on its forehead if you see a picture. These dolphins use echolocation. Echolocation provides them the ability to sense the things around them in the water. 


Not all of the Pink river dolphins are pink. Mostly the young ones are grey and they get pink as they age. The adult male are more pinker than the females.
There are several hypothesis for their colour such as:
The Boto dolphin’s skin is so thin, you can see blood vessels under their skin, that provide their pink complexion.
The pink color also matches the red mud that occurs when the river flows in heavy rains.
   

I think Boto dolphins are intelligent and fascinating creatures.