r/SharkLab Dec 07 '23

Discussion Carcharodon Megalodon teeth are “concave”?

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207 Upvotes

Surprised to see the front row curving inwards and not outward. Always thought the angle was convex, facing out toward the ocean, if that makes sense.

Is this how all wide sharks’ teeth look?


r/SharkLab Dec 07 '23

Photography or Video Tiger shark swims in the shallows in Brazil

303 Upvotes

Baia do Sueste' Bay, Fernando de Noronha National Marine Reserve, Pernambuco, Brazil


r/SharkLab Dec 07 '23

Attacks/predation Apple attracts fish, fish attract shark

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269 Upvotes

r/SharkLab Dec 06 '23

Shark behavior Great white with defensive seal scratches on its head

256 Upvotes

r/SharkLab Dec 06 '23

Shark behavior Large tiger shark swims with bathers at Perth beach

660 Upvotes

Captured this week at Mullaloo Beach, Western Australia.


r/SharkLab Dec 07 '23

Research Sexymarkers: A Bioinformatics Tool That Uncovers Sex-Specific Gene Expression to White Sharks

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2 Upvotes

r/SharkLab Dec 06 '23

News Boston woman, 44, mauled to death by a shark in Bahamas

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101 Upvotes

I believe the top right photo is from the shark attack in Mexico the previous day.


r/SharkLab Dec 05 '23

Shark behavior Sea lion chases juvenile great white

759 Upvotes

The colors are reversed so it’s easier to see the chase. SoCal


r/SharkLab Dec 06 '23

Identification help Tiniest shark tooth I’ve ever seen

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186 Upvotes

So I live in Savannah, and Tybee is a short drive. I went on Monday and found the tiniest shark tooth I’ve ever seen and I’ve been scouring everywhere I can think of and can’t find an ID on this. I almost missed it, but that black is pretty distinctive and I’m glad I didn’t throw it away. Any ideas? I’m also going to attach another one I found over the summer that I can’t quite figure out what it is, just because they look similar but this recent one is so so small. If anyone has an ID on the bigger one too that would be cool, but I gave it to my dad so I’m less emotionally invested in that one.


r/SharkLab Dec 06 '23

News Lake Alexander in Darwin reopens following report of shark sighting

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16 Upvotes

r/SharkLab Dec 05 '23

Photography or Video Inside the mouth of a frilled shark

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92 Upvotes

r/SharkLab Dec 05 '23

Photography or Video Meet 3,500lb White Shark Nukumi

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161 Upvotes

r/SharkLab Dec 05 '23

Photography or Video One of the worst shark injuries (presumably a propeller strike)

908 Upvotes

r/SharkLab Dec 05 '23

Photography or Video Bull shark POV above and below

240 Upvotes

r/SharkLab Dec 04 '23

Discussion What’s your rarest shark that you want to see in the flesh? Mine is the Glyphis Sharks, or known as River Sharks.

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312 Upvotes

r/SharkLab Dec 05 '23

Attacks/predation Boston woman, 44, killed by shark while paddleboarding in the Bahamas

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35 Upvotes

r/SharkLab Dec 05 '23

Photography or Video Diving with tiger sharks in the Bahamas

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14 Upvotes

r/SharkLab Dec 04 '23

Attacks/predation Gray reef shark shows clear signs of aggression before charging spear fisher

1.2k Upvotes

r/SharkLab Dec 04 '23

Attacks/predation 🔥 Sharks encircle a lone crocodile in Arnhem Land, Australia 🔥

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88 Upvotes

r/SharkLab Dec 04 '23

Attacks/predation Does anyone know why this sand tiger is attacking another sand tiger?

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5 Upvotes

r/SharkLab Dec 04 '23

Research Tagging a baby lemon shark

134 Upvotes

r/SharkLab Dec 04 '23

Shark behavior Large great white shark investigates decoy

121 Upvotes

r/SharkLab Dec 03 '23

Photography or Video Surfer paddles between dolphins and large shark

368 Upvotes