Can't delete a pointer in C++ - pointers

Question

I got this code from a book. When I ran on Visual Studio, it said to switch strcpy() to strcpy_s(), and after I did that, it seems the program terminated at the delete pointer. I tried to run on Dev-C++, and it works fine. Anyone knows why? Thank you.
#include "pch.h"
#include <iostream>
#include <cstring>
int main()
{
cout << "Enter a kind of animal: ";
cin >> animal; // ok if input < 20 chars
ps = animal; // set ps to point to string
cout << ps << "!\n"; // ok, same as using animal
cout << "Before using strcpy():\n";
cout << animal << " at " << (int *)animal << endl;
cout << ps << " at " << (int *)ps << endl;
ps = new char[strlen(animal) + 1]; // get new storage
strcpy_s(ps, sizeof(animal), animal); // copy string to new storage
cout << "After using strcpy():\n";
cout << animal << " at " << (int *)animal << endl;
cout << ps << " at " << (int *)ps << endl;
delete[] ps;
return 0;
}