#rays

[nightmaresyrup]

A tiny cookie-sized Ray

Just found out about Finless Sleeper Rays

Look how small they get:

[nemfrog]

Red sun. The mysterious universe. 1930. Endpaper detail.

Internet Archive

[protectoursharks]

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/?

[buonbella]

Hope this adds a little sunshine to your day ☀️💛

❤︎‬ MY SECRET SPOT ❤︎

[geopsych]

Who wants a walk in the woods after a rain, July 2020?

[uncharismatic-fauna]

Uncharismatic Fact of the Day

Between sharks and rays, wedgefish get the best of both worlds! The eleven known species of wedgefish are characterised by their wide, flat bodies which resemble stingrays, and their fins and tails which resemble those of sharks. The combination of the two makes them powerful swimmers, although they spend most of their time cruising the ocean floor hoovering up crustaceans, mollusks, and bottom-dwelling fish.

(Image: A bottlenose wedgefish (Rhynchobatus australiae) by the Marine Megafauna Foundation)

[speed-knights]