Questions tagged [bone]

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1 vote
0 answers
60 views

What animal this bone belongs to?

I recently found this bone on the balcony of my house. In case it helps, my house is in the northwest of Spain next to a park in a coastal city, and size is 15-20 mm. Does anyone know what animal it ...
1 vote
0 answers
44 views

Found possible bone on St Pete beach in Flordia

What is this bone from? Looks like a vertebrae but not sure. What marine animal could it be from? It’s about an inch Long.
3 votes
0 answers
64 views

Identifying a bone I found in Central France

I found this bone in Auvergne as a child. This specific area is apparently well-known to paleontologists and I found the bone in a field very close to scientific excavations (literally meters away ...
3 votes
0 answers
94 views

Is this part of a claw to a Dinosaur?

Agitzed claw 1 large and 1 smaller underneath. What I found is about 4" long and about 3/4" in diameter which gets smaller towards the tip. Underneath it appears to be another small claw ...
2 votes
0 answers
37 views

Identification of Bone like subject found on Beach in santa cruz ca

I found this at the Beach in Santa Cruz California, it is about 2 inches long and at its widest it is about 1.5 inches wide and it weighs 3 grams, and I'm not sure what it is, Google Image search ...
0 votes
1 answer
1k views

What's the terminology for the deformity between the halluces and index toes caused by sandals?

In Japan, especially in the past, people tended to wear wooden sandals or the like, which separated their halluces from their index toes. As a result, there is often a gap between their halluces and ...
-2 votes
1 answer
309 views

How can a joint extend or flex?

The idea of a joint flexing or extending doesn't make sense to me, I can see how a leg or an arm might extend or flex but how does a joint extend or flex ? "The hip joint is most stable when it is ...
-1 votes
1 answer
122 views

Bone found on uk beach

I found this bone on a uk beach. Looks like a hip or shoulder. It has saw marks in so didnt die of natural causes. Anyone know what its from? Maybe cow or pig
8 votes
1 answer
217 views

Identification of a strange skull

My father is a fisherman in the Baltic sea, and he has found this very strange skull. I would like to know to which animal it belonged. Can someone help identify it?
3 votes
0 answers
35 views

ID Large, broad flat bone found in Gulf of Mexico [duplicate]

`1 Is this a tooth? A rib? Or a fish? I found this in about 4’ of water in the Gulf of Mexico/Galveston. It is slightly curved and the side edges have numerous pointy parts. On one side at the bottom ...
0 votes
0 answers
54 views

Identify bone found on beach in Scotland

Found on a beach in Scotland, it's about 10cm long, any ideas what it is?
3 votes
0 answers
54 views

Vertebra identification

What type of vertebra is this? It was found on a beach in Corea, Maine.
8 votes
1 answer
2k views

What is this bone from?

This object showed up on my fire escape in New York city. It appears to be some kind of bone. It's a bit smaller than an adult human hand. What animal is it from?
1 vote
1 answer
78 views

What is this tooth or tusk that was found with several others in a scrimshaw kit from Nantucket?

This was in a scrimshaw kit that was purchased at a yard sale about 20 years ago. Kit was sold by a company on Nantucket, and was old at the time of the yard sale. It is not known if this and the ...
0 votes
0 answers
619 views

Vertebrae looking bone found on beach in New Zealand

I found this bone on a beach in New Zealand. Does anybody have any idea which part of the body or which animal it’s from? (click to enlarge)
0 votes
1 answer
358 views

Explain why bones cannot undergo interstitial growth as cartilage does

I got a question from a textbook <<Seeley's Anatomy & Physiology Twelfth Edition>> that does not have an answer at the back of the book (only odd numbered questions do have an answer ...
4 votes
2 answers
643 views

To which ungulate species does this tooth remainder belong?

Found on the beach in Çanakkale, Turkey. I have found a lot of these, but this is the first one that has parts like long teeth. My other findings have sometimes 4, sometimes 6 tubes. Very solid, ...
50 votes
2 answers
3k views

Help identifying leaf-like bone

I found two of these objects near a creek in Missouri. They feel like they are made out of bone but they do not look like any bone I have seen before. They also appear as though the could be some sort ...
2 votes
1 answer
653 views

Please identify this bone found on the beach

I've found it on the beach in Çanakkale, Turkey. Width 7.5 cm, height 5 cm. Inner hole dimensions are 2.5 cm x 3 cm.
1 vote
2 answers
263 views

What is this fossilized claw found in a Belgian forest?

What is this fossilized claw found in a Belgian forest? It is 14.5 cm long and 2.5 cm in diameter.
2 votes
2 answers
175 views

Why is cartilage replaced by bones in a vertebrate adult?

Why is cartilage present in a vertebrate embryo replaced by bones in an vertebrate adult even though cartilage can also provide me the structural framework like as in Chondrichthyes and they seem to ...
1 vote
0 answers
19 views

Architecture of lamellae in trabeculae in spongy bone

It is easy to find the architecture of lamellae in osteons in compact bone, they're layers of collagen fibers and each layer alternates in the angle the fibers are oriented. Is the lamellae in ...
1 vote
0 answers
39 views

What is the thinnest spot on the ilium called?

Is there a specific name for the spot on the human iliac fossa where the bone is the thinnest? (Or, is there a name for the thickness measurement of that spot, e.g. the left/right _________ is 2.1mm?) ...
3 votes
1 answer
263 views

In endochondral bone formation, why does only hyaline cartilage get ossified to form bone?

There are three types of cartilage: hyaline, fibrous and elastic cartilage. Fibrous cartilage does not have perichondrium...so it does not take part in ossification because perichondrium needs to ...
2 votes
0 answers
133 views

Help identifying this bird skull

The skull is 4 to 6 inches long and still has tendons attached. I found this on a beach in central California, which leads me to think it's probably from a seabird. I believe this is from a smaller ...
1 vote
0 answers
17 views

Why and how do red bone marrow concentrations in humans change during traditional aging?

I have found several pictures that suggest this is the case. As for peer reviewed papers I've found plenty of papers hypothesizing and testing as to the why of changes in populations of HSCs, a few ...
2 votes
0 answers
296 views

What type of bird skull is this?

My aunt found this skull on the beach in Vancouver Canada. I believe it might be a type of bird, but I can’t place it. It is about 5 inches (~13 cm) long and 2.5 inches (6.35 cm) wide.
18 votes
1 answer
4k views

What kind of skull is this?

We found this skull on a beach in southwestern Sweden, and are curious as to what kind of animal it was.
2 votes
0 answers
81 views

What kind of skull is this-I found it on the beach in Cape May

I am hoping someone can help identify this skull! We found it on the beach in Cape May. The skull size is about 4 inch in length. Thank you.
0 votes
0 answers
37 views

What do bones need to grow outside the body?

In what environment outside of a living organism can bones grow? If I were to put an arbitrary human bone in a room and attach a bunch of tubes to it, or dunk it in some kind of solution, where would ...
1 vote
0 answers
391 views

Movement of the Thoracic Cage During Movements of the Thoracic Spine

Just for a bit of context: I am trying to create a 3D digital model of the human skeleton as the first step towards computer generated muscle simulation, and as such I want the skeleton to be as ...
2 votes
2 answers
145 views

Is it impossible to increase skeletal bone mass, as opposed to just bone density? [closed]

I've heard exercise and resistance/strength training increases the density, but doesn't increase mass. So basically, experimentally or theoretically possible at least, can modern science do this/is it ...
3 votes
0 answers
94 views

What type of skull is this? [duplicate]

This skull was found in the mountains/woods of extreme southwestern Virginia (Dickenson County). There is not (to my limited knowledge) any animal native to this area that has this type of skull. ...
2 votes
0 answers
151 views

Help identify this vertabrae found on Costa Rica beach

I was walking down tamarindo beach in Costa Rica today and came upon a really LARGE section of vertabrae.. I matched it against a crocodile a shark , whales, a horse, a cow, a snake even ... any ideas ...
0 votes
1 answer
233 views

Is there any way bicondylar/bigonial, bizygomatic or bitemporal breadth can change in adults?

Without cosmetic surgery or etc., are there any cases/example wherein a human adult has had a change in significance regarding these regions of the face? I have seen many anecdotes where people have ...
1 vote
1 answer
102 views

Are there any proven ways to increase the rate of bone remodeling in humans?

I'm not asking for anything specific -- just wondering if there's any data, studies, or etc. that show a possibility in increased bone resorption and turnover (bone remodeling/Wolff's Law) from ...
1 vote
0 answers
79 views

Trying to identify the species to which this vertebrae belongs

Found vertebrae in the "graveyard of the Atlantic" (on account of the 5,000+ shipwrecks since the 1520's) off Frisco/Hatteras, North Carolina. Tried searching online but not finding any perfect ...
-5 votes
1 answer
215 views

Can the face bones be "compressed" or forced together? What would happen? [closed]

Say someone doesn't like that their maxilla bone is too long because the height of the maxilla affects the placement, position and angle of the mandible relatively. If one were to apply mechanical ...
10 votes
1 answer
756 views

Identify this vertebra

I was walking on the beach in New Jersey (U.S.), at about 40 degrees longitude, and found this bone. It's not a fish. The long process in the front is interesting. It is likely a C2 vertebra. I looked ...