What is the latest for shark news? Anything good? -Ryan
Hi Ms. Melissa,
What do you think: could the Manhattan Beach shark bite have been predicted, or avoided? -Ashley
Can you give your opinion as to why Colin Simpfendorfer would not sign a shark experts letter to the WA EPA to request that alternatives instead of drum lines?
What is the lateral line? Thanks! -Jesse
Thanks for your question!
The "lateral line" are a line of open pores along the sides of a shark, that help feel vibrations in the water. These canals are filled with water and contain sensory cells that has hairs in it; the hairs move when water vibrates. This can be used to detect potential prey items.
Hi Ms. Marquez,
How do fish and sharks differ? Thank you. Sincerely, Timothy
Thank you for your question!
There are a few key differences:
- Most fish have skeletons made of bone. However, a shark's skeleton is cartilage, a type of strong, flexible tissue.
- Most fish have smooth, flat scales. A shark has sharp, toothlike scales called denticles.
- Most fish have one gill slit—used for breathing—on each side of the body. A shark has five, six, or sometims seven gill slits on each side.
- Most fish have a flap over the gills. Sharks do not.