Blind-Croc Mystery | National Geographic

we got

we got I’ve experienced their power and their

I’ve experienced their power and their

I’ve experienced their power and their bite

bite

bite but it did in my share it’s hard to

but it did in my share it’s hard to

but it did in my share it’s hard to believe anything other than humans can

believe anything other than humans can

believe anything other than humans can threaten them but the American Crocs of

threaten them but the American Crocs of

threaten them but the American Crocs of Costa Rica are facing a new danger some

Costa Rica are facing a new danger some

Costa Rica are facing a new danger some of them may be going blind

a normal croc eye is clear but this eye

a normal croc eye is clear but this eye is dark and cloudy something’s wrong

is dark and cloudy something’s wrong

is dark and cloudy something’s wrong for Crocs vision is key their eyes are

for Crocs vision is key their eyes are

for Crocs vision is key their eyes are perfectly adapted to their environment

perfectly adapted to their environment

perfectly adapted to their environment Crocs eyes are effective during the day

Crocs eyes are effective during the day

Crocs eyes are effective during the day and at night and above and below the

and at night and above and below the

and at night and above and below the water but something is damaging these

water but something is damaging these

water but something is damaging these Crocs eyes and our goal is to identify

Crocs eyes and our goal is to identify

Crocs eyes and our goal is to identify the culprit my destination is the tar

the culprit my destination is the tar

the culprit my destination is the tar colace River in western Costa Rica this

colace River in western Costa Rica this

colace River in western Costa Rica this is where the eye problems seem to be the

is where the eye problems seem to be the

is where the eye problems seem to be the most acute I’ve assembled an expert team

most acute I’ve assembled an expert team

most acute I’ve assembled an expert team of scientists that help me solve the

of scientists that help me solve the

of scientists that help me solve the mystery my good friend in croc expert

mystery my good friend in croc expert

mystery my good friend in croc expert Juan bolaños alerted me to the eye

Juan bolaños alerted me to the eye

Juan bolaños alerted me to the eye problem several years ago and since then

problem several years ago and since then

problem several years ago and since then the number of Crocs with damaged eyes

the number of Crocs with damaged eyes

the number of Crocs with damaged eyes has been growing

we don’t know what’s causing the problem

we don’t know what’s causing the problem but we have some suspects toxic

but we have some suspects toxic

but we have some suspects toxic contaminants or an infection possibly

contaminants or an infection possibly

contaminants or an infection possibly caused by pathogens like bacteria or

caused by pathogens like bacteria or

caused by pathogens like bacteria or viruses sections of the tar collage

viruses sections of the tar collage

viruses sections of the tar collage River looked peaceful and unspoiled

River looked peaceful and unspoiled

River looked peaceful and unspoiled but it’s sadly one of the most polluted

but it’s sadly one of the most polluted

but it’s sadly one of the most polluted rivers in the Americas contaminants like

rivers in the Americas contaminants like

rivers in the Americas contaminants like pesticides and metals found in many

pesticides and metals found in many

pesticides and metals found in many rivers have been associated with

rivers have been associated with

rivers have been associated with wildlife diseases around the globe

wildlife diseases around the globe

wildlife diseases around the globe causing deformities and birds

causing deformities and birds

causing deformities and birds malformations and frogs and tumors and

malformations and frogs and tumors and

malformations and frogs and tumors and fish it’s possible contaminants in this

fish it’s possible contaminants in this

fish it’s possible contaminants in this river like DDT or mercury may be

river like DDT or mercury may be

river like DDT or mercury may be damaging these crocs eyes but infection

damaging these crocs eyes but infection

damaging these crocs eyes but infection could be the other culprit runoff from

could be the other culprit runoff from

could be the other culprit runoff from mini costa rican farms and towns flows

mini costa rican farms and towns flows

mini costa rican farms and towns flows into the tar Colonus

into the tar Colonus

into the tar Colonus bacteria and viruses thrive in polluted

bacteria and viruses thrive in polluted

bacteria and viruses thrive in polluted rivers filled with human and animal

rivers filled with human and animal

rivers filled with human and animal waste to find out what’s affecting the

waste to find out what’s affecting the

waste to find out what’s affecting the Crocs eyes it’s gonna take hands-on

Crocs eyes it’s gonna take hands-on

Crocs eyes it’s gonna take hands-on research

our team will examine the eyes and take

our team will examine the eyes and take tissue samples to determine the

tissue samples to determine the

tissue samples to determine the potential culprit