Behemoth (very likely a sauropod like Brachiosaurus)
Job 40:15 “Behold, Behemoth, which I made as I made you; he eats grass like an ox.
Job 40:16 Behold, his strength in his loins, and his power in the muscles of his belly.
Job 40:17 He makes his tail stiff like a cedar; the sinews of his thighs are knit together.
Job 40:18 His bones are tubes of bronze, his limbs like bars of iron.
Job 40:19 “He is the first of the works of God; let him who made him bring near his sword!
Job 40:20 For the mountains yield food for him where all the wild beasts play.
Job 40:21 Under the lotus plants he lies, in the shelter of the reeds and in the marsh.
Job 40:22 For his shade the lotus trees cover him; the willows of the brook surround him.
Job 40:23 Behold, if the river is turbulent he is not frightened; he is confident though Jordan rushes against his mouth.
Job 40:24 Can one take him by his eyes, or pierce his nose with a snare?
Leviathan (some have suggested a land-based animal like T-Rex, others a water dinosaur like Mosasaurus or Plesiosaurus)
Job 41:1 “Can you draw out Leviathan with a fishhook or press down his tongue with a cord?
Job 41:2 Can you put a rope in his nose or pierce his jaw with a hook?
Job 41:3 Will he make many pleas to you? Will he speak to you soft words?
Job 41:4 Will he make a covenant with you to take him for your servant forever?
Job 41:5 Will you play with him as with a bird, or will you put him on a leash for your girls?
Job 41:6 Will traders bargain over him? Will they divide him up among the merchants?
Job 41:7 Can you fill his skin with harpoons or his head with fishing spears?
Job 41:8 Lay your hands on him; remember the battle–you will not do it again!
Job 41:9 Behold, the hope of a man is false; he is laid low even at the sight of him.
Job 41:10 No one is so fierce that he dares to stir him up. Who then is he who can stand before me?
Job 41:11 Who has first given to me, that I should repay him? Whatever is under the whole heaven is mine.
Job 41:12 “I will not keep silence concerning his limbs, or his mighty strength, or his goodly frame.
Job 41:13 Who can strip off his outer garment? Who would come near him with a bridle?
Job 41:14 Who can open the doors of his face? Around his teeth is terror.
Job 41:15 His back is made of rows of shields, shut up closely as with a seal.
Job 41:16 One is so near to another that no air can come between them.
Job 41:17 They are joined one to another; they clasp each other and cannot be separated.
Job 41:18 His sneezings flash forth light, and his eyes are like the eyelids of the dawn.
Job 41:19 Out of his mouth go flaming torches; sparks of fire leap forth.
Job 41:20 Out of his nostrils comes forth smoke, as from a boiling pot and burning rushes.
Job 41:21 His breath kindles coals, and a flame comes forth from his mouth.
Job 41:22 In his neck abides strength, and terror dances before him.
Job 41:23 The folds of his flesh stick together, firmly cast on him and immovable.
Job 41:24 His heart is hard as a stone, hard as the lower millstone.
Job 41:25 When he raises himself up the mighty are afraid; at the crashing they are beside themselves.
Job 41:26 Though the sword reaches him, it does not avail, nor the spear, the dart, or the javelin.
Job 41:27 He counts iron as straw, and bronze as rotten wood.
Job 41:28 The arrow cannot make him flee; for him sling stones are turned to stubble.
Job 41:29 Clubs are counted as stubble; he laughs at the rattle of javelins.
Job 41:30 His underparts are like sharp potsherds; he spreads himself like a threshing sledge on the mire.
Job 41:31 He makes the deep boil like a pot; he makes the sea like a pot of ointment.
Job 41:32 Behind him he leaves a shining wake; one would think the deep to be white-haired.
Job 41:33 On earth there is not his like, a creature without fear.
Job 41:34 He sees everything that is high; he is king over all the sons of pride.”
Dan 7:7 After this I saw in the night visions, and behold, a fourth beast, terrifying and dreadful and exceedingly strong. It had great iron teeth; it devoured and broke in pieces and stamped what was left with its feet. It was different from all the beasts that were before it, and it had ten horns.
(The word for “feet” here is the same word for when the lion stands on two “feet”, a bipedal usage).