living fossil

noun 0.598

coalfish

noun 0.592

lungfish

noun 0.580

coelom

noun 0.580

coelomate

noun 0.572

coelenterate

noun 0.571

loach

noun 0.560

teleost

noun 0.556

caecilian

noun 0.555

lizardfish

noun 0.555

cichlid

noun 0.554

crocodilian

noun 0.548

acanthodian

noun 0.548

devilfish

noun 0.544

anglerfish

noun 0.538

lionfish

noun 0.531

dolphinfish

noun 0.530

conger eel

noun 0.529

codfish

noun 0.528

catfish

noun 0.528

bony fish

noun 0.528

lanternfish

noun 0.526

placoderm

noun 0.525

plesiosaur

noun 0.525

boxfish

noun 0.523

finfish

noun 0.520

ichthyosaurus

noun 0.518

elasmobranch

noun 0.517

ichthyosaur

noun 0.517

acoelomate

noun 0.515

frogfish

noun 0.515

blue catfish

noun 0.515

choanoflagellate

noun 0.514

cyclostome

noun 0.514

cephalopod

noun 0.514

ocean sunfish

noun 0.514

axolotl

noun 0.512

lake trout

noun 0.511

electric eel

noun 0.510

killifish

noun 0.510

filefish

noun 0.509

actinopterygian

noun 0.509

caiman

noun 0.508

kingfish

noun 0.507

sea dragon

noun 0.507

colobus

noun 0.506

sunfish

noun 0.505

sailfish

noun 0.504

hogfish

noun 0.503

koel

noun 0.503

agnathan

noun 0.502

jewfish

noun 0.502

cobalt

noun 0.501

giant squid

noun 0.501

sawfish

noun 0.501