Killi

aside
Tiktaalik

bones
Costa2015

Osteology

(Introduction to ichthyological osteology)

As fish evolved so did skeletal changes and nowhere as quickly as in the jaws, head and bones that support the fins; today these are as if not more important as DNA evidence.


cichlid
midas
Arbour2016 Meier_2017
Evolution of Cichlids

By 250mya there were around 1200 species of fish. Between then and now around 27,000 species of fish evolved.


Evolution of color in fishes

What we know about color and evolution in fish.


DNA


killifish
geo
ref similar

Evolution of Killifish.


sticklebacks
fast_evo

Our multi finned brackish friend

As marine fish currently entering fresh waters sticklebacks are being studied to observe the micro-evolution demonstrable in contemporary time frames.








Encyclopedia Aquatica