How did this shore fill with grey slime? 

Find out more on a new #WhatOnEarth tonight at 9p ET. https://t.co/dWpl5eLEpE

RT @SharkWeek: The #SharkWeek blimps are breaching into the sky this Friday! 🦈🌤 Rep the sharks on your coast by posting your blimp sightings on social media with #EastShark or #WestShark.

Head over to https://t.co/FIjslNjrfC Friday to track the journey and see which blimp gets the most love! https://t.co/6p3GMksQTz

RT @SharkWeek: The #SharkWeek blimps are breaching into the sky this Friday! 🦈🌤 Rep the sharks on your coast by posting your blimp sightings on social media with #EastShark or #WestShark.

Head over to https://t.co/FIjslNjrfC Friday to track the journey and see which blimp gets the most love! https://t.co/6p3GMksQTz

A #lion’s roar is often used as an intimidation tactic. A message to other lions: “Hey, this territory is occupied”. 🦁

Video by @camscott_wild/IG https://t.co/BBJg5Q9SJL

RT @curiositydotcom: Today's episode is all about Peter Tattersfield - marine archeologist and @ExplorersClub @Discovery Expedition Grantee.

Listen now to hear how he helped discover a long-lost shipwreck on #CuriosityDaily🎙 https://t.co/SZ65YL1BrX

RT @SharkWeek: 🥱 🦈 Here we go again… 

#SharkWeek https://t.co/CJdM7pq2Ul

RT @SharkWeek: “Yeah I'm free, free falling.” - 🦭

#SharkWeek https://t.co/H7JtIOSR8N

RT @MythBusters: No myths detected here #SharkWeek https://t.co/3HgPXcL1R0 https://t.co/boDR837i1a

RT @AnimalPlanet: A hawksbill #turtle and their reflection 

: Suju Gasim https://t.co/fGeH13nKgJ

RT @Discovery: Image by Dhir Jakharia (IG: spotclickpost)

The circle of #life. https://t.co/rYom9ejrKH

Is volcanic activity to blame for a string of mysterious events in an area known as the Dragon's Triangle?

Learn more on the season premiere of #WhatOnEarth tonight at 9p ET. https://t.co/FKh2KY9jIC

RT @SharkWeek: Wednesday mornings be like:

#SharkWeek https://t.co/aAPOfGVrZe

RT @SharkWeek: Tonic immobility is used as an aid when tagging sharks in the field. This minimizes the possibility of injury for both the shark and the researcher.

RT @SharkWeek: Good shark 🙂🦈

#SharkWeek starts July 24 on @Discovery and @discoveryplus https://t.co/AtSGZvqK66

RT @SharkWeek: *chomp* 🦈 

#SharkWeek starts July 24 on @Discovery and @discoveryplus https://t.co/kpOy9y9fQL

Pictured here is a tardigrade on top of a Stentor coeruleus. Stentors are often called the blue whales of the microscopic world because of their gigantic size, but size doesn't necessarily equate to cell count!

One of these #microscopic animals is made up of around 1,000 cells while the other is made up of just a single cell. Can you guess which one it is?

#MicrocopicMonday  by @tardibabe/IG https://t.co/UuvU4gPObB

🏌️‍♂️ Nothing like a new set of clubs! Happy #FathersDay

Stream #HowitsMade on @discoveryplus. https://t.co/5U22EVNkek https://t.co/zFor2Qi9tD

These huge predators were roughly the size of a school bus. 🦖 https://t.co/sPEzLstv8s

Welcome to the bottom of the Southern Ocean. 🧊  

Explore the depths of our planet with oceanic explorer, Victor Vescovo and Stream #ExpeditionDeepOcean on @discoveryplus. https://t.co/aMYNWy3zM8