Nature never ceases to surprise. 

上面的内容摘自2022年高考英语天津卷阅读C。请问其中的surprise为不及物动词吧？但我查词典，它没有不及物动词的用法啊？ 

附全文:

The question, “What do elephants and fish have in common?” may sound strange but researchers have found that they both have a feature not observed in any other creature.

A team at Georgia Institute of Technology has discovered that elephants use a special form of air suction in their trunks to pick up food and handle delicate objects. Animals using suction to handle objects are typically found in water. Many fish perform suction feeding that requires specialised body parts to quickly generate air pressure that can draw nearby food into their mouths.

The researchers have found that an elephant could do the same thanks to its huge nostrils and lung capacity. The radius of an elephant’s nostrils can increase by up to 30%, and the volume of air that it can push through its trunk increases by 64%. This allows it to take in air at 30 times the speed of a human sneeze, enabling it to drink 3L of water a second.

In an experiment at Atlanta zoo, the researchers looked at how an elephant would pick up a small crispy pancake, which was only 0.5mm thick. The force required to break the pancake was less than 1% of the trunk’s weight (about 100kg). The elephant was found to either use suction at a fixed distance from the pancake to “raise” the object in the air and hold it, or gently press the tip of its trunk against the pancake and apply suction to pick it up. At no time during the experiment did the elephant break the pancake.

The researchers believe that the findings could help technology companies develop better machines that use air to do their jobs, as suction has long been used in robotics to grab objects. The fascinating part of the study for robotics is that elephants can use air suction both on ground and in water. The researchers are so impressed that they suggest the elephant’s suction technique could help improve robotics technology.

Nature never ceases to surprise. Indeed, it is thought that over four-fifths of living species on earth remain undiscovered. That is a reminder of how little we know of our planet, and that we are not the only creatures with hidden complexities.

上面的内容为2022年高考英语天津卷阅读C的材料。请问其中的surprise为不及物动词吧？但我查词典，它没有不及物动词的用法啊？