Borrow Five Hundred Years From Heaven?

Two fifty!

Song He's forehead was faintly beaded with sweat as he examined the microscope more and more quickly.

Although the students in the Second Laboratory were only following orders, they were even more nervous than Song He. Their hearts were in their throats as they stared eagerly at their pillar of support.

At last, Song He revealed a smile, like a general returning from a distant expedition after crossing mountains and valleys to discover traces of the enemy!

In the microscope's field of view before him, a system prompt appeared!

Half the bacterial population had reached a life-or-death juncture. The evolution window had opened. Countdown: 100 seconds!

There were two possible evolutionary directions:

"Get ready!" Song He shouted.

Fan Tao jolted beside him and hurriedly dragged over the box of materials. She checked the positions of the reagent bottles one last time. The moment he gave the order, she would spring into action!

Direction One: Gluttony

Add trace amounts of Sodium Bicarbonate, lactose, and Thiocyanate Ion.

One in eighty thousand bacteria would increase its food intake, raising its reproduction speed by 20%.

Song He frowned. A 20% increase? That was pathetic!

Direction Two: Borrow Five Hundred Years From Heaven

Add trace amounts of Thiocyanate Ion, Salivary Gland Hormone, Potassium Chloride, and Dual Antibiotics, then culture at a constant temperature of 10°C for ten minutes.

One in a hundred thousand bacteria would mutate. The average lifespan of the mutants would increase by 500%.

A flash of brilliance instantly crossed Song He's eyes!

E. coli with five times the lifespan would definitely possess tremendous research value!

They had no ready-made, purified Thiocyanate Ion or Salivary Gland Hormone, but fortunately, both components were present in human saliva!

Although saliva contained other impurities, there was no time to worry about that. Time was