Mammal-like

The adjective 'mammal-like' describes something that possesses characteristics or features resembling those found in mammals. This can include physical attributes, behaviors, or physiological processes. The term implies a similarity to, but not necessarily being, a true mammal. Often, the comparison is drawn to extinct or primitive forms of mammals, or other vertebrates that convergently evolved similar traits. This comparative description highlights convergent evolution, where unrelated organisms independently evolve similar traits due to similar environmental pressures.

Mammal-like meaning with examples

• Fossil discoveries revealed a previously unknown creature with a 'mammal-like' jaw structure, teeth differentiation, and probable warm-bloodedness. This led paleontologists to believe it might be on the evolutionary path to early mammals or a related branch. The find significantly reshaped understanding of life during the Permian period.
• The synapsid's, 'mammal-like' skull structure, though distinct from modern mammals, showcased features like a single lower temporal fenestra, indicating an advanced stage in the evolution of jaw musculature. This particular design, facilitated efficient chewing and ultimately influenced the development of our mammalian structure.
• Certain reptiles exhibited 'mammal-like' postural stances, suggesting an evolutionary drive towards increased agility and a shift away from the sprawling posture common in most reptiles. Their more upright limbs possibly indicating a change in lifestyle to include sustained movement. This postural shift might reflect a lifestyle change.
• The extinct therapsids, from the Permian-Triassic periods displayed 'mammal-like' traits, like possibly possessing fur or hair, as well as efficient metabolic rates. This evidence shows that our ancestors, underwent evolutionary changes as they adapted to their environments over millions of years.