Dr. Leo Chan Gaskinsさんのイラストまとめ

Giant devil rays (Mobula mobular) might have a secret ‘maternity ward!’

Awesome article about my most recent Mobula Ray paper & their potential new pupping ground! #FlatSharkFriday

https://t.co/bTVQcELTih
©Getty Images

It's #EtymologyMonday! Today is the subclass of sharks & rays, Elasmobranchii!

elasma = beaten metal or elastic (greek)
brankhia = gills (greek)

All together-> BEATEN METAL ELASTIC GILLS!

Probably a reference to the flexible skeletons!

©Patrik Neckman
©Chris Fallows

Did you know that Spotted Ratfish (Hydrolagus colliei) have a RETRACTIBLE BARBED PROTRUSION ON THEIR FOREHEAD TO HELP THEM HOLD ON WHEN MATING?!

This has to be one of the coolest adaptations I've ever heard of!

#ObscureSharkThursday
#CartilaginousSharkCousins
©Jacqui Engel

@ITSSIMON007 Sending hugs!! Don't feel stupid at all!

It's #EtymologyMonday! Today is the Copper Shark (Carcharhinus brachyurus)!

karcharos = sharp (greek)
rhinos = nose (greek)
brakhus = short (greek)
oura = tail (greek)

All together-> SHARP NOSE SHORT TAIL!

It's like the shark version of Spongebob Squarepants :)

© Doug Perrine

Have you ever heard of the Copper Shark (Carcharhinus brachyurus)?

- Also known as the Bronze Whaler due to coloration
- Found in patches throughout the world
- Reach 3m (10ft) as adults
- Born measuring 60cm (23in)!

#ObscureSharkThursday

© Rudie Kuiter

Notice something flapping off the eye of this nosy Greenland Shark (Somniosus microcephalus)?

That's an eye parasite! It causes partial or full blindness over time, but its bioluminescent properties are thought to attract prey. Sharks have many other better-tuned senses anyway!

It's #EtymologyMonday! Today is the name of the class that comprises all sharks, Chondrichthyes!

chondr = cartilage (greek)
ichthys = fish (greek)

All together-> CARTILAGE FISH!

Absolutely spot on!

It's #EtymologyMonday! Today is the Salmon Shark (Lamna ditropis)!

lamna= shark (greek)
di = two (greek)
tropis = keel (greek)

All together-> TWO KEEL SHARK!

Spot on!
(The two keels/ridges at the base of the tail help to identify it as a salmon shark instead of a great white)

Did you know that Great White, Mako, & Porbeagle Sharks are cousins?

They're all part of the Lamnidae family, also known as mackerel sharks. They each have a similar streamlined body shape & are the some of the fastest sharks!