Previous observations of C. cidaris aggregations suggested that these are for both reproductive and feeding purposes and form irrespective of the presence of predators48.
Their occurrence in Vale de Meios tidal flat represents the unique paleoethological evidence of megalosaurids moving towards the lagoon, most likley during the low tide periods with feeding purposes.
The directional analyses of trackways, which are preserved in an inter-tidal flat located at the edge of a lagoon, reveals that various individuals crossed a tidal flat in accordance to tide cycles, directing toward the barrier during low tide periods, probably for feeding purposes on exposed vertebrate.
"It's almost similar to tool use in other animals, but in this case the shark is using a body part evolved for a different function for feeding purposes".
Great white sharks apparently don't find humans tasty, so attacks on humans aren't for feeding purposes.
The four lower incisors that would have made up the toothcomb were modified, being shorter and more robust, possibly for feeding purposes.
In contrast, for feeding purposes, protein content should be maximized and pentosan content minimized.
Healthy caterpillars climb at night for feeding purposes and return down during the day to avoid predation.
The evidence suggests that these movements were not for breeding or feeding purposes, and we hypothesize that they might be physiologically adaptive.
In addition, the mantle also controls inflow of water into the shell's internal chamber responsible for respiratory and filter feeding purposes.
