do mammals also have this bladder?
Yes, all mammals have a urinary bladder
Mammals
All mammals have a urinary bladder
what tissue types form the wall of the ureter urothelial cells what is ureter? The ureters are tubes made of smooth muscle that propel urine from the kidneys to the urinary bladder. what is the size of this tube? The ureters are between 1.5 - 6 mm in diameter, and surrounded by a layer of smooth muscle for 1 - 2 cm near their ends just before they enter the bladder. can you name one function of this bladder? Urine, excreted by the kidneys, collects in the bladder
Yes. All mammals have a urinary bladder. Yes. The mammalian bladder is an organ that regularly stores a hyperosmotic concentration of urine Yes
Urinary bladder Urinary bladder Urinary bladder
Mammals Mammals Mammals
All mammals have a urinary bladder. This structure begins as an embryonic cloaca. In the vast majority, this eventually becomes differentiated into a dorsal part connected to the intestine and a ventral part which becomes associated with the urinogenital passage and urinary bladder. All mammals have a urinary bladder. This structure begins as an embryonic cloaca. In the vast majority, this eventually becomes differentiated into a dorsal part connected to the intestine and a ventral part which becomes associated with the urinogenital passage and urinary bladder. The only mammals in which this does not take place are the platypus and the spiny anteater both of which retain the cloaca into adulthood.

The mammalian bladder is an organ that regularly stores a hyperosmotic concentration of urine. It therefore is relatively impermeable and has multiple epithelial layers. The urinary bladder of the cetaceans (whales and dolphins) is proportionally smaller than that of land-dwelling mammals. All mammals have a urinary bladder. 
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Urinary bladder [SEP] Mammals
All mammals have a urinary bladder. This structure begins as an embryonic cloaca. In the vast majority, this eventually becomes differentiated into a dorsal part connected to the intestine and a ventral part which becomes associated with the urinogenital passage and urinary bladder. The only mammals in which this does not take place are the platypus and the spiny anteater both of which retain the cloaca into adulthood. The mammalian bladder is an organ that regularly stores a hyperosmotic concentration of urine. It therefore is relatively impermeable and has multiple epithelial layers. The urinary bladder of the cetaceans (whales and dolphins) is proportionally smaller than that of land-dwelling mammals.