The Constant Urge To Go Find The Next Best Thing - Being Purposeless In The Pursuit Of Finding Your Next

There are four types of fish scales!

Cycloid scales are thin, overlap, and flexible. They're found on primitive teleosts (like minnows and carp).

Ctenoid scales have small, backwards pointed scales (known as cterns) make the fish more hydrodynamic and faster. They're found on Advanced Ctenoids (like perch and sunfish).

Ganoid scales are thick, diamond-shaped, and mostly non-overlapping. They're found on Chondrostei (like sturgeons and paddlefish).

Placoid scales are spikey and tooth-like with nerves. These are found on Chondrichthyes (like sharks and rays).

Ichthyology Notes 3/?

Kingfisher and Great Egret lined up just right

Orlowo Pier - Poland

by adam.gieraltowski

Open wide

All of my friends that work at wildlife rehab centers have had to untangle animals from this stuff, or had animals brought in that died in it. This is especially nasty for small owl species.

by i.sherman