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todayilearned

Jul 20, 2020

TIL in the Pliocene, 3 million years ago, the world was about 2C warmer than now, and sea levels were somewhere between 10M and 40M higher than now. 2C is also the rise we hope to keep below by 2100.

image ocean story the-big-questions

todayilearned

Jun 06, 2020

TIL there's a Japenese diver who tends an underwater Shinto shrine and has been greeted by the same fish for the past 25 years

animals can fish be friends with humans diver do fish have feelings fish friendly asian sheepshead wrasse hiroyuki arakawa hiroyuki arakawa fish friendship human fish friendship japan japan fish friendship japan fish human friendship ocean scuba diving yoriko yoriko friendly fish

todayilearned

Jan 25, 2020

TIL Marine Biologist, Edith Widder created a device that mimicked the Atolla Jellyfish's alarm (when threatened the jellyfish will emit a light that signals bigger predators to its location). She placed the device in the deep sea along with a camera. To her surprise a giant squid showed up.

animal edith widder exploration explorer giant squid ocean ocean explorer oceans squid technology ted talk ted talks tedtalk tedtalks underwater

todayilearned

Jan 18, 2020

TIL only four people have been at the bottom of the Mariana Trench, called the Challenger Deep (about 11000 meters or 36000ft down). For reference, 12 people have walked on the Moon.

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todayilearned

Nov 30, 2019

TIL whenever a hermit crab finds a shell too big for itself it'll wait until a queue forms and an individual that fits the shell is found. Then an exchange will occur - smaller crabs will move to newly emptied shells.

amazing crabs shell exchange animals bbc bbc earth crab crabs crabs shell exchange david attenborough exchange shell hermit crab hermit crab changing shells hermit crabs life story natural history nature ocean sea sea shell shell exchange shell size shells swap shell wild wildlife

todayilearned

Oct 13, 2019

TIL The African continent is being split in two due to the birth of a new ocean. In 2005, an eight-meter-wide and 60-kilometer-long stretch of the Earth opened up over a period of just ten days.

ocean ocean facts unbelievable facts

todayilearned

Aug 26, 2019

TIL Sperm whales are the loudest animal on the planet, sperm whales uses echolocation and vocalization as loud as 236 decibels

02014 animal communication animals author citizen science clicking clicks communication conversations at the interval deep deep book diving freediving long now long now foundation mammals ocean ocean exploration san francisco sea sea life sf sperm whales the interval the interval at long now whales

todayilearned

Apr 08, 2019

TIL that the clicking noise sperm whales use to communicate is so loud that it can be heard by other whales thousands of miles away and can make a human body intensely vibrate to the point of death.

02014 animal communication animals author citizen science clicking clicks communication conversations at the interval deep deep book diving freediving long now long now foundation mammals ocean ocean exploration san francisco sea sea life sf sperm whales the interval the interval at long now whales

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