Discover and read the best of Twitter Threads about #funfactfriday
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The Great Pyramid of Giza was the tallest structure in the world for over 3,800 years.#FunFactFriday 
It is said to have been constructed from over 2,300,000 blocks of limestone, although no one can agree on whether the workers dragged, lifted, or rolled them into place. Adjusted for modern costs, at $496 per block plus labor and modern materials.
The pyramid would cost $1.2 billion to build.
At 455 feet tall, it was the tallest building in the world from the time of its completion around 2560 BC to 1311 AD. Currently, the Burj Khalifa is the tallest structure in the world, but no building has held the title for as long.
At 455 feet tall, it was the tallest building in the world from the time of its completion around 2560 BC to 1311 AD. Currently, the Burj Khalifa is the tallest structure in the world, but no building has held the title for as long.
BERMUDA TRIANGLE
Ijue Bermuda triangle na matukio mengi ya kusaajabisha juu ya Bermuda 🇧🇲 triangle
Chukua popcorn 🍿 kabisa shuka na huu uzii mpaka mwisho
-THREAD-
🔁Retweet iwafikie wengii
#FunFact
#FunFactFriday #wapwatuinuane
Ijue Bermuda triangle na matukio mengi ya kusaajabisha juu ya Bermuda 🇧🇲 triangle
Chukua popcorn 🍿 kabisa shuka na huu uzii mpaka mwisho
-THREAD-
🔁Retweet iwafikie wengii
#FunFact
#FunFactFriday #wapwatuinuane
Bermuda Triangle ni eneo la Bahari ya Atlantiki pande zote mbili za ikweta mbele ya pwani ya Amerika Kaskazini, baina ya Florida, Puerto Rico na visiwa vya Bermuda.
Tangu mwaka 1964 jina la "pembetatu ya Bermuda" lilibuniwa na kusambazwa na waandishi wa habari wakijaribu kueleza kupotea kwa boti, meli na ndege katika eneo hili
For those who wanted a world without vaccines, witness the world without one vaccine.
Now we understand a tiny bit what it’s like living in a pre-vaccine world. Salk’s inactivated polio vaccine launched on a Friday (Mar. 12, 1954) changes the world by reducing cases of childhood paralysis from 350,000/year in 1988 to 33 in 2018...#FridayMotivation #FunFactFriday
...But there was also a naysayer in the same issue of the @nytimes. Albert Sabin, Salk’s competitor, said the research was going too fast, proving that even the greatest breakthroughs have their critics. #FridayMotivation #science #FunFactFriday
Today on our #citizenscience board we're discussing which inverts are easiest to ID from photos. Our recent #InvasionsLabPub showed that conspicuous taxa (large or arborescent) are best. Do you agree? Try yourself & let us know which animals you recognize fastest! #FunFactFriday
You can check out our #InvaderID chat board and try identifying #marine #invertebrates here:
zooniverse.org/projects/serc/…
zooniverse.org/projects/serc/…
Or you can read the paper, published this week, here:
frontiersin.org/articles/10.33…
frontiersin.org/articles/10.33…
The way people feel about a species is all about location, location, location! #BlueCrabs (Callinectes sapidus) are a delicacy in the Chesapeake. They're the most valuable fishery in the Bay, and every restaurant around claims to have the best crab cakes. #FunFactFriday
But in Spain, blue crabs are a problematic #invasivespecies. First observed in 2012, the crabs have spread throughout wetlands, estuaries and rivers. They're causing severe negative impacts to fishermen because the crabs cut through nets.
Researchers from the University of Alicante Marine Research Center in Spain are working with fishermen to develop ways to control the expansion and minimize impacts on local fisheries.
chesapeakebaymagazine.com/baybulletin/20…
chesapeakebaymagazine.com/baybulletin/20…
ICYMI, our #FunFactFriday is about new research from us, @DarwinFound and @WilliamsMystic - Scientists found >50 new non-native species in the #galapagosislands! But we're not shocked that there are new species, non-natives are everywhere!
However the number that we found (10 times what we previously thought) was surprising.
Part of the reason that this was such a surprise was that it had been nearly 30 years since the last comprehensive sampling (see photo!) of fouling organisms on the Islands.
Part of the reason that this was such a surprise was that it had been nearly 30 years since the last comprehensive sampling (see photo!) of fouling organisms on the Islands.
This is a huge part of why we started the #InvaderID project on @the_zooniverse. By increasing the speed and frequency with which we can track new invaders, we have a better chance of detecting the invasion while in its early stages. You can try it here:
zooniverse.org/projects/serc/…
zooniverse.org/projects/serc/…
For today's #FunFactFriday we're featuring an invertebrate that also celebrates #InternationalWomensDay - the slipper limpet!
(they're the gastropods on this gastropod and the gastropod on the gastropod on the gastropod)
(they're the gastropods on this gastropod and the gastropod on the gastropod on the gastropod)
Slipper limpets reproduce by stacking themselves on top of each other like a jenga pile. Interestingly slipper limpets can change sex depending on which level of the pile it lands in. The limpet on the bottom of the stack will change to the female sex.
If you want a chance to find and identify cool species like these (#invertebratesrule), check out #InvaderID on zooniverse here!
zooniverse.org/projects/serc/…
zooniverse.org/projects/serc/…
In honor of our #ScientistsInTheField, for this week's #FunFactFriday we're exploring the impact of marine protections, like the designation of current #FoulingSurvey site Cocos Island as an UNESCO World Heritage Site in 1997 and as a National Park of Costa Rica!
Efforts have been made to preserve the natural ecosystem on and around Cocos. The only permanent residents are park rangers. All visitors (a few tourists and scientists) require permission to visit. No camping, agriculture, fishing, or businesses are allowed on the island.
Despite these extraordinary efforts, the island still faces damage from #invasivespecies. No mammals are native to the island, but deer, wild boar, cats and rats have been introduced. We're there trying to understand how invasive marine species are impacting the ocean ecosystem.
We study #invasivespecies & the issues that spawn when a newcomer joins an already balanced ecosystem. But we know that invasions don't always happen in a perfect system.
Ocean acidification will unbalance our coastal ecosystems and open a door to more invasions. #FunFactFriday
Ocean acidification will unbalance our coastal ecosystems and open a door to more invasions. #FunFactFriday
OA, which increases as CO2 is added to the ocean, can make growing calcium-based shells very difficult for young bivalves. Oysters, mussels, and clams might grow softer or smaller shells, leaving ample opportunity for better adapted invasive species to take their place.
There are many more ways OA can hurt coastal systems. It might reduce the amount of food available from zooplankton, increase the growth of harmful algae, or even potentially dissolve carbonate structures. Any of these changes might cause unpredictable ecosystem breakdowns.
We use many methods to find #invasivespecies: intertidal searches, settlement panel projects, & plankton tows.
You might not know each method can find the same species, rather than each looking for different species! #FunFactFriday We're exploring invertebrate planktonic phases!
You might not know each method can find the same species, rather than each looking for different species! #FunFactFriday We're exploring invertebrate planktonic phases!
The animals that settle on our shores can spend some portion of their life floating in the ocean. We call this part of their life the #planktonic phase, and depending on the species it defines how far a population can spread.
Some adult tunicates, like salps, spend their whole lives swimming in the open ocean. But most tunis we study are benthic (attached to the shore) as adults, so spend only a small period swimming as larvae. Here's a new tuni tadpole, just released from a Botryllid on our panels.
#DYK some of the animals that live on our #FoulingProject panels are too small to see with a naked eye? For example, encrusting bryozoans live in small "cells" that group together to form circular discs with intricate designs. (1/3)
Each of the bryozoan cells - or zooids - contains an animal! All the zooids are clones of the original "ancestrula" zooid. Here's an example of a close-up photo of what an encrusting bryozoan looks like. #FunFactFriday #UnscienceAnAnimal (2/3)
Bryozoans can be ID'd by the color, shape, and size of the zooids, as well as the shape of the hole they use to emerge from to grab floating food. You can try to find bryozoans on our panels by checking out our #CitizenScience project: goo.gl/zUdqoN (3/3) 🔬 #InvaderID
#FunFactFriday on #biocontrol: We focus on finding new #invasivespecies & preventing introductions b/c #eradication, especially in the ocean, is hard. Removing small animals by hand is almost always impossible, so sci's must use a mechanical, chemical, or biological solution. 🔎
Introducing known predators of invasives is an effort called "biocontrol" but sometimes these predators don't follow orders. Check out this @SmithsonianMag article about a wasp that *might* save Florida oranges! goo.gl/EnEchH
A well known biocontrol failure is the introduction of the South Am. Cane Toad to AUS 🇦🇺. It was brought to eat an insect pest but the toad didn't like the habitat of the pest & moved quickly to a new area, where its population exploded - a problem since cane toads are poisonous!
