Knowledge Point 01: Baboons Are the Largest Monkey Species, While Marmosets Are the Smallest
Baboons are the largest monkey species in the world, while marmosets are the smallest monkeys, forming a stark contrast in size between the two.
Detailed Explanation: Among primates, baboons are renowned for their huge size and strong strength, earning them the title of “giants” among monkeys.
Their bodies are robust, with long and powerful limbs, suited for climbing and running in forests and grasslands. In contrast, marmosets are the “miniature versions” of monkeys, with small and delicate bodies, agile movements, and a proficiency in jumping and weaving through trees.
Despite their huge size difference, baboons and marmosets both possess unique ecological niches and survival strategies, showcasing the diversity and adaptability of primates.
Knowledge Point 02: Amphioxus Is Considered the Ancestor of Fish
Amphioxus, a primitive invertebrate, is regarded by scientists as the ancestor of modern fish, holding significant importance for studying the origin of fish.
Detailed Explanation: Amphioxus has a cylindrical body, with the mouth at the front and the tail at the back, covered in transparent skin. They live in the mud and sand of the ocean, feeding on tiny plankton.
Amphioxus occupies an important position in the history of biological evolution, as they possess some fish-like characteristics, such as gill slits and a notochord, while retaining some invertebrate traits.
Therefore, scientists believe that amphioxus is a transitional form between fish and other vertebrates, providing valuable clues for studying the origin of fish and biological evolution.
Knowledge Point 03: Wolf Spiders Are the Most Venomous, While Blue Whales Are the Largest Among Mammals
Among spiders, wolf spiders are renowned for their intense venom; whereas among mammals, blue whales are famous for their immense size, being the largest living mammals.
Detailed Explanation: Wolf spiders, native to South America, are highly venomous spiders with venom containing potent neurotoxins capable of causing severe injury or even death to humans and other animals. In contrast, blue whales are the “giants” of mammals, with body lengths reaching over 30 meters and weights exceeding 100 tons.
They live in the ocean, feeding on plankton and small fish. The enormous size and unique ecological niche of blue whales make them significant members of marine ecosystems, playing a crucial role in maintaining marine ecological balance.
