Manitoba is well-known for its fossil record, including the fossil-filled, world-famous Ordovician-aged Tyndall Stone and the ...

Aging gracefully isn't about denying the passage of time—it’s about meeting it with confidence, strength, and the ability to ...

Painful joints? Here's what your joint pain may be telling you about your health, according to rheumatologist Dr. Natalie ...

Instead of bone, shark skeletons are made up of cartilage – the same soft tissue that’s found in our nose and ears. As humans, we typically have 206 bones in our bodies (babies have almost 100 ...

Instead of sharks evolving from a massive predator, the original creature was a small, leaf-shaped fish. This fish lacked eyes and fins. It also did not have bones. As the oceans began to fill with ...

A Shark Ancestor’s Skeleton Was Made Of Bone, Not Cartilage Megalodons and other ancient sharks evolved from a sightless, finless, boneless fish. ©racksuz/Shutterstock.com ...

Sharks don’t have bones. Instead, their skeletons are made from mineralized cartilage that helps them constantly move through water. To understand the internal “sharkitecture” that helps keep these ...

They glide like birds underwater, but don’t let their gentle appearance fool you – manta rays are closely related to sharks. In this episode, we explore the fascinating connection between ...

University of Basel. "Cartilage and bone development: Three paths to skeleton formation." ScienceDaily. ScienceDaily, 27 March 2025. <www.sciencedaily.com / releases / 2025 / 03 / 250327141722.htm>.

One type of precursor cell forms the skull and facial bones, another the spinal column and ribs, and a third type the skeleton of the limbs. “You can imagine it as three construction teams, each ...

She found the skeletons of both lampreys and hagfish are made of cartilage segments connected by muscle, connective tissue, or more cartilage. There were no cavities in between.