I don’t think I can do any of these.
This beauty is a live Cuspivolva tigris (Gastropoda - Ovulidae), showing the brightly colored mantle covering the shell and the siphon (left side).
The siphon is an anterior extension of the mantle, through which water is drawn into the mantle cavity and over the gill for respiration.
The mantle is orange-yellow and has black patches with white border, due to this and the ovoid shape of the shell, this species is commonly known as Tigger egg cowrie.
Okay but Never Gonna Give You Up (better known as Rickroll) is actually a really really horrible song for many reasons, which I will better explain under the cut.
Brace yourselves, this is pretty long.
Wow I actually never thought I’d even care about such an old song but jeez